INSTRUMENT_HOST_ID             = "MESS"
INSTRUMENT_ID                  = "EPPS"

INSTRUMENT_NAME                = "ENERGETIC PARTICLE AND PLASMA SPECTROMETER"
INSTRUMENT_TYPE                = "ENERGETIC PARTICLE AND PLASMA SPECTROMETER"
INSTRUMENT_REFERENCE_INFO: PDS3_REFERENCE_KEY_ID = 
"ANDREWSETAL2007"

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "AHARONSONETAL2004"
REFERENCE_DESC                 = "
Aharonson, O., M.T. Zuber, and S.C. Solomon, Crustal remanence in an
internally magnetized non-uniform shell: A possible source for Mercury's
magnetic field?, Earth and Planetary Science Letters, 218, 261-268,
2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ALEXEEVETAL2010"
REFERENCE_DESC                 = "
Alexeev, I.I., E.S. Belenkaya, J.A. Slavin, D.N. Baker, B.J. Anderson, S.A.
Boardsen, C.L. Johnson, H. Korth, M.E. Purucker, M. Sarantos, and S.C.
Solomon, Mercury's magnetospheric magnetic field after the first two
MESSENGER flybys, Icarus, 209, 23-39, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ANDERSONETAL2007"
REFERENCE_DESC                 = "
Anderson, B.J., M.H. Acuna, D.A. Lohr, J. Scheifele, A. Raval, H. Korth, and 
J.A. Slavin, The Magnetometer instrument on MESSENGER, Space Science 
Reviews, 131, 417-450, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ANDERSONETAL2008"
REFERENCE_DESC                 = "
Anderson, B.J., M.H. Acuna, H. Korth, M.E. Purucker, C.L. Johnson, J.A.
Slavin, S.C. Solomon, and R.L. McNutt, Jr., The structure of Mercury's
magnetic field from MESSENGER's first flyby, Science, 321, 82-85, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ANDERSONETAL2010"
REFERENCE_DESC                 = "
Anderson, B.J., M.H. Acuna, H. Korth, J.A. Slavin, H. Uno, C.L. Johnson, M.E.
Purucker, S.C. Solomon, J. M Raines, T.H. Zurbuchen, G. Gloeckler, and R.L.
McNutt, Jr., The magnetic field of Mercury, Space Science Reviews, 152,
307-339, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ANDERSONETAL2011"
REFERENCE_DESC                 = "
Anderson, B.J., J.A. Slavin, H. Korth, S.A. Boardsen, T.H. Zurbuchen, J.M.
Raines, G. Gloeckler, R.L. McNutt, Jr., and S.C. Solomon, The dayside
magnetospheric boundary layer at Mercury, Planetary and Space Science, 59,
2037-2050, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ANDERSONETAL2011B"
REFERENCE_DESC                 = "
Anderson, B.J., C.L. Johnson, H. Korth, M.E. Purucker, R.M. Winslow, J.A.
Slavin, S.C. Solomon, R.L. McNutt, Jr., J.M. Raines, and T.H. Zurbuchen, The
global magnetic field of Mercury from MESSENGER orbital observations,
Science, 333, 1859-1862, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ANDERSONETAL2012"
REFERENCE_DESC                 = "
Anderson, B.J., C.L. Johnson, H. Korth, R.M. Winslow, J.E. Borovsky, M.E.
Purucker, J.A. Slavin, S.C. Solomon, M.T. Zuber, and R.L. McNutt, Jr., Low-
degree structure in Mercury's planetary magnetic field, Journal of
Geophysical Research, 117, E00L12, doi:10.1029/2012JE004159, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ANDERSONETAL2013"
REFERENCE_DESC                 = "
Anderson, B.J., C.L. Johnson, and H. Korth, A magnetic disturbance index for
Mercury's magnetic field derived from MESSENGER Magnetometer data,
Geochemistry, Geophysics, Geosystems, 14, 3875-3886, doi:10.1002/ggge.20242,
2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ANDERSONETAL2014"
REFERENCE_DESC                 = "
Anderson, B.J., C.L. Johnson, H. Korth, J.A. Slavin, R.M. Winslow, R.J.
Phillips, R.L. McNutt, Jr., and S.C. Solomon, Steady-state field-aligned
currents at Mercury, Geophysical Research Letters, 41, 7444-7452, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ANDREWSETAL2007"
REFERENCE_DESC                 = "
Andrews, G.B., T.H. Zurbuchen, B.H. Mauk, H. Malcom, L.A. Fisk, G.
Gloeckler, G.C. Ho, J.S. Kelley, P.L. Koehn, T.W. LeFevere, S.S.
Livi, R.A. Lundgren, and J.M. Raines, The Energetic Particle and
Plasma Spectrometer instrument on the MESSENGER spacecraft, Space
Science Reviews, 131, 523-556, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ARCHINALETAL2010"
REFERENCE_DESC                 = "
Archinal, B.A., M.F. A'Hearn, E. Bowell, A. Conrad, G.J. Consolmagno,
R. Courtin, T. Fukushima, D. Hestroffer, J.L. Hilton, G.A. Krasinsky,
G. Neumann, J. Oberst, P.K. Seidelmann, P. Stooke, D.J. Tholen, P.C. Thomas,
I.P. Williams, Report of the IAU Working Group on Cartographic Coordinates
and Rotational Elements: 2009, http://astropedia.astrogeology.usgs.gov,
2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ARCHINALETAL2011"
REFERENCE_DESC                 = "
Archinal, B.A., M.F. A'Hearn, E. Bowell, A. Conrad, G.J. Consolmagno,
R. Courtin, T. Fukushima, D. Hestroffer, J.L. Hilton, G.A. Krasinsky,
G. Neumann, J. Oberst, P.K. Seidelmann, P. Stooke, D.J. Tholen, P.C. Thomas,
I.P. Williams, Report of the IAU Working Group on Cartographic Coordinates
and Rotational Elements: 2009, Celestial Mechanics and Dynamical Astronomy,
109, 101-135, doi: 10.1007/s10569-010-9320-4, 2011"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ARTISETAL2007"
REFERENCE_DESC                 = "
Artis, D.A., B.K. Heggestad, C.J. Krupiarz, M.A. Mirantes, and J.D. Reid,
MESSENGER: Flight software design for a deep space mission, Institute of
Electrical and Electronics Engineers Aerospace Conference, IEEEAC paper 1089,
9 pp., Big Sky, MT, March 2-10, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ASMAR&RENZETTI1993"
REFERENCE_DESC                 = "
Asmar, S.W., and N.A. Renzetti, The Deep Space Network as an Instrument
for Radio Science Research, Jet Propulsion Laboratory Publication, 80-93,
Rev. 1, 15 April 1993."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ASMARETAL1995"
REFERENCE_DESC                 = "
Asmar, S.W., R.G. Herrera, and T. Priest, Radio Science Handbook, 
JPL D-7938, Volume 6, Jet Propulsion Laboratory, Pasadena, CA, 1995."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BAKERETAL2009"
REFERENCE_DESC                 = "
Baker, D.N., D. Odstrcil, B.J. Anderson, C.N. Arge, M. Benna, G. Gloeckler,
J.M. Raines, D. Schriver, J.A. Slavin, S.C. Solomon, R.M. Killen, and T.H.
Zurbuchen, Space environment of Mercury at the time of the first MESSENGER
flyby: Solar wind and interplanetary magnetic field modeling of upstream
conditions, Journal of Geophysical Research, 114, A10101,
doi:10.1029/2009JA014287, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BAKERETAL2011"
REFERENCE_DESC                 = "
Baker, D.M.H., J.W. Head, S.C. Schon, C.M. Ernst, L.M. Prockter, S.L.
Murchie, B.W. Denevi, S.C. Solomon, and R.G. Strom, The transition from
complex crater to peak-ring basin on Mercury: New observations from MESSENGER
flyby data and constraints on basin formation models, Planetary and Space
Science, 59, 1932-1948, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BAKERETAL2011B"
REFERENCE_DESC                 = "
Baker, D.N., D. Odstrcil, B.J. Anderson, C.N. Arge, M. Benna, G. Gloeckler,
H. Korth, L.R. Mayer, J.M. Raines, D. Schriver, J.A. Slavin, S.C. Solomon, P.
Travnicek, and T.H. Zurbuchen, The space environment of Mercury at the times
of the second and third MESSENGER flybys, Planetary and Space Science, 59,
2058-2065, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BAKERETAL2013"
REFERENCE_DESC                 = "
Baker, D.N., G. Poh, D. Odstrcil, C.N. Arge, M. Benna, C.L. Johnson, H.
Korth, D.J. Gershman, G.C. Ho, W.E. McClintock, T.A. Cassidy, A. Merkel, J. M
Raines, D. Schriver, J.A. Slavin, S.C. Solomon, P.M. Travnicek, R.M.
Winslow, and T.H. Zurbuchen, Solar wind forcing at Mercury: WSA-ENLIL model
results, Journal of Geophysical Research: Space Physics, 118, 45-57,
doi:10.1029/2012JA018064, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BAKERETAL2016"
REFERENCE_DESC                 = "
Baker, D.N., R.M. Dewey, D.J. Lawrence, J.O. Goldsten, P.N. Peplowski, H.
Korth, J.A. Slavin, S.M. Krimigis, B.J. Anderson, G.C. Ho, R.L. McNutt, Jr.,
J.M. Raines, D. Schriver, and S.C. Solomon, Intense energetic electron flux
enhancements in Mercury's magnetosphere: An integrated view with high-
resolution observations from MESSENGER, Journal of Geophysical Research:
Space Physics, 121, 2171-2184, 2016."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BALOGHETAL2007"
REFERENCE_DESC                 = "
Balogh, A., R. Grard, S.C. Solomon, R. Schulz, Y. Langevin, Y. Kasaba, and M.
Fujimoto, Missions to Mercury, Space Science Reviews, 132, 611-645, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BANKSETAL2015"
REFERENCE_DESC                 = "
Banks, M.E., Z. Xiao, T.R. Watters, R.G. Strom, S.E. Braden, C.R. Chapman,
S.C. Solomon, C. Klimczak, and P.K. Byrne, Duration of activity on lobate-
scarp thrust faults on Mercury, Journal of Geophysical Research: Planets,
120, 1751-1762, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BECKERETAL2016"
REFERENCE_DESC                 = "
Becker, K.J., M.S. Robinson, T.L. Becker, L.A. Weller, K.L. Edmonson,
G.A. Neumann, M.E. Perry, S.C. Solomon, First digital elevation model of
Mercury, 47th Lunar and Planetary Science Conference, abstract #2949,
2016."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BEDINIETAL2010"
REFERENCE_DESC                 = "
Bedini, P.D., and E.J. Finnegan, MESSENGER: An extreme systems engineering
challenge, Insight, 13, International Council on Systems Engineering,
pp.11-12, December 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BEDINIETAL2010B"
REFERENCE_DESC                 = "
Bedini, P.D., and L.M. Prockter, The quest to explore Mercury, The Planetary
Report, 30, pp. 6-11, November/December 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BEDINIETAL2011"
REFERENCE_DESC                 = "
Bedini, P.D., S.C. Solomon, E.J. Finnegan, A.B. Calloway, S.L. Ensor, R.L.
McNutt, Jr., B.J. Anderson, and L.M. Prockter, MESSENGER at Mercury: A mid-
term report, 62nd Astronautical Congress, International Astronautical
Federation, paper IAC-11.A3.5.1, 13 pp., Cape Town, South Africa, October
3-7, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BEDINIETAL2012"
REFERENCE_DESC                 = "
Bedini, P.D., S.C. Solomon, E.J. Finnegan, A.B. Calloway, S.L. Ensor, R.L.
McNutt, Jr., B.J. Anderson, and L.M. Prockter, MESSENGER at Mercury: A mid-
term report, Acta Astronautica, 81, 369-379, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BENNAETAL2009"
REFERENCE_DESC                 = "
Benna, M., M.H. Acuna, B.J. Anderson, S. Barabash, S.A. Boardsen, G.
Gloeckler, R.E. Gold, G.C. Ho, H. Korth, S.M. Krimigis, R.L. McNutt, Jr.,
J.M. Raines, M. Sarantos, J.A. Slavin, S.C. Solomon, T.-L. Zhang, and T.H.
Zurbuchen, Modeling the response of the induced magnetosphere of Venus to
changing IMF direction using MESSENGER and Venus Express observations,
Geophysical Research Letters, 36, L04109, doi:10.1029/2008GL036718, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BENNAETAL2010"
REFERENCE_DESC                 = "
Benna, M., B.J. Anderson, D.N. Baker, S.A. Boardsen, G. Gloeckler, R.E. Gold,
G.C. Ho, R.M. Killen, H. Korth, S.M. Krimigis, M.E. Purucker, R.L. McNutt,
Jr., J.M. Raines, W.E. McClintock, M. Sarantos, J.A. Slavin, S.C. Solomon,
and T.H. Zurbuchen, Modeling of the magnetosphere of Mercury at the time of
the first MESSENGER flyby, Icarus, 209, 3-10, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BERMANETAL2009"
REFERENCE_DESC                 = "
Berman, A.F., D.L. Domingue, M.E. Holdridge, T.H. Choo, R.J. Steele, and R.G.
Shelton, Orbital operations planning and scheduling for the MESSENGER
mission, 6th International Workshop on Planning and Scheduling for Space, 10
pp., Pasadena, CA, July 19-21, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BERMANETAL2010"
REFERENCE_DESC                 = "
Berman, A.F., D.L. Domingue, M.E. Holdridge, T.H. Choo, R.J. Steele, and R.G.
Shelton, Testing and validation of orbital operations plans for the MESSENGER
mission, Observatory Operations: Strategies, Processes, and Systems III, SPIE
Astronomical Telescopes and Instrumentation 2010, Conference 7737, paper
7737-13, 13 pp., San Diego, CA, June 30 - July 2, 2010.  (Also published in
Observatory Operations: Strategies, Processes, and Systems III, edited by
D.R. Silva, A.B. Peck, and B.T. Soifer, Proceedings of SPIE, 7737,
doi:10.1117/12.857107, 2010.)"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BLAIRETAL2013"
REFERENCE_DESC                 = "
Blair, D.M., A.M. Freed, P.K. Byrne, C. Klimczak, L. M Prockter, C. M Ernst,,
S.C. Solomon, H.J. Melosh, and M.T. Zuber, The origin of graben and ridges in
Rachmaninoff, Raditladi, and Mozart basins, Mercury, Journal of Geophysical
Research: Planets, 118, 47-58, doi:10.1029/2012JE004198, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BISHOP1985"
REFERENCE_DESC                 = "
Bishop, J., Geocoronal structure - The effects of solar radiation pressure 
and the plasmasphere interaction, J. Geophys. Res., 90, 5235-5245, 1985."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BLEWETT2013"
REFERENCE_DESC                 = "
Blewett, D.T., The discovery of hollows on Mercury, Astronomy Beat, No. 107,
pp. 1-6, January 15, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BLEWETTETAL2009"
REFERENCE_DESC                 = "
Blewett, D.T., M.S. Robinson, B.W. Denevi, J.J. Gillis-Davis, J.W. Head, S.C.
Solomon, G.M. Holsclaw, and W.E. McClintock, Multispectral imaging of Mercury
from the first MESSENGER flyby: Analysis of global and regional color trends,
Earth and Planetary Science Letters, 285, 272-282, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BLEWETTETAL2010"
REFERENCE_DESC                 = "
Blewett, D.T., S.A. Hauck, II, and H. Korth, Introduction to the special
issue of Icarus on Mercury after Two MESSENGER Flybys, Icarus, 209, 1-2,
2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BLEWETTETAL2010B"
REFERENCE_DESC                 = "
Blewett, D.T., B.W. Denevi, M.S. Robinson, C.M. Ernst, M.E. Purucker, and
S.C. Solomon, The apparent lack of lunar-like swirls on Mercury: Implications
for the formation of lunar swirls and for the agent of space weathering,
Icarus, 209, 239-246, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BLEWETTETAL2011"
REFERENCE_DESC                 = "
Blewett, D.T., New views of diverse worlds, Mercury, 40, 28-34, Autumn 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BLEWETTETAL2011B"
REFERENCE_DESC                 = "
Blewett, D.T., N.L. Chabot, B.W. Denevi, C.M. Ernst, J.W. Head, N.R.
Izenberg, S.L. Murchie, S.C. Solomon, L.R. Nittler, T.J. McCoy, Z. Xiao,
D.M.H. Baker, C.I. Fassett, S.E. Braden, J. Oberst, F. Scholten, F. Preusker,
and D.M. Hurwitz, Hollows on Mercury: Evidence from MESSENGER for
geologically recent volatile-related activity, Science, 333, 1856-1859, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BLEWETTETAL2013"
REFERENCE_DESC                 = "
Blewett, D.T., W.M. Vaughan, Z. Xiao, N.L. Chabot, B.W. Denevi, C.M. Ernst,
J. Helbert, M. D'Amore, A. Maturilli, J.W. Head, and S.C. Solomon, Mercury's
hollows: Constraints on formation and composition from analysis of geological
setting and spectral reflectance, Journal of Geophysical Research: Planets,
118, 1013-1032, doi:10.1029/2012JE004174, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BLEWETTETAL2014"
REFERENCE_DESC                 = "
Blewett, D.T., C.L. Levy, N.L. Chabot, B.W. Denevi, C.M. Ernst, and S.L.
Murchie, Phase-ratio images of the surface of Mercury: Evidence for
differences in sub-resolution texture, Icarus, 242, 142-148, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BOARDSEN&SLAVIN2007"
REFERENCE_DESC                 = "
Boardsen, S.A., and J.A. Slavin, Search for pick-up ion generated Na+
cyclotron waves at Mercury, Geophysical Research Letters, 34, L22106,
doi:10.1029/2007GL031504, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BOARDSENETAL2009"
REFERENCE_DESC                 = "
Boardsen, S.A., J.A. Slavin, B.J. Anderson, H. Korth, and S.C. Solomon,
Comparison of ultra-low-frequency waves at Mercury under northward and
southward IMF, Geophysical Research Letters, 36, L18106,
doi:10.1029/2009GL039525, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BOARDSENETAL2009B"
REFERENCE_DESC                 = "
Boardsen, S.A., B.J. Anderson, M.H. Acuna, J.A. Slavin, H. Korth, and S.C.
Solomon, Narrow-band ultra-low-frequency wave observations by MESSENGER
during its January 2008 flyby through Mercury's magnetosphere, Geophysical
Research Letters, 36, L01104, doi:10.1029/2008GL036034, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BOARDSENETAL2010"
REFERENCE_DESC                 = "
Boardsen, S.A., T. Sundberg, J.A. Slavin, H. Korth, S.C. Solomon, and L.G.
Blomberg, Observations of Kelvin-Helmholtz waves along the dusk-side boundary
of Mercury's magnetosphere during MESSENGER's third flyby, Geophysical
Research Letters, 37, L12101, doi:10.1029/2010GL043606, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BOARDSENETAL2012"
REFERENCE_DESC                 = "
Boardsen, S.A., J.A. Slavin, B.J. Anderson, H. Korth, D. Schriver, and S.C.
Solomon, Survey of coherent ~1 Hz waves in Mercury's inner magnetosphere,
Journal of Geophysical Research, 117, A00M05, doi:101029/2012JA017822, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BOKULICETAL2004"
REFERENCE_DESC                 = "
Bokulic, R.S., K.B. Fielhauer, R.E. Wallis, S. Cheng, M.L. Edwards,
R.K. Stilwell, J.E. Penn, J.R. Bruzzi, and P.M. Malouf, MESSENGER
mission: First electronically steered antenna for deep space
communications, Institute of Electrical and Electronics Engineers (IEEE)
Aerospace Conference, IEEAC paper 1370, 10 pp., CD-ROM 4-1503, Big Sky,
MT, March 6-13, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BOYNTONETAL2007B"
REFERENCE_DESC                 = "
Boynton, W.V., A.L. Sprague, S.C. Solomon, R.D. Starr, L.G. Evans,
W.C. Feldman, J.I. Trombka, and E.A. Rhodes, MESSENGER and the
chemistry of Mercury's surface, Space Science Reviews, 131, 85-104, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BRADEN&ROBINSON2013"
REFERENCE_DESC                 = "
Braden, S.E., and M.S. Robinson, Relative rates of optical maturation of
regolith on Mercury and the Moon, Journal of Geophysical Research: Planets,
118, 1903-1914, doi:10.1002/jgre.20143, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BRUZZIETAL2006"
REFERENCE_DESC                 = "
Bruzzi, J.R., J.R. Jensen, K.B. Fielhauer, D.W. Royster, and D.K.
Srinivasan, Telemetry recovery and uplink commanding of a spacecraft
prior to three-axis attitude stabilization, Institute of Electrical and
Electronics Engineers (IEEE) Aerospace Conference, IEEEAC paper 1202, 10
pp., Big Sky, MT, March 4-11, 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BURGERETAL2010"
REFERENCE_DESC                 = "
Burger, M.H., R.M. Killen, R.J. Vervack, Jr., E.T. Bradley, W.E. McClintock,
M. Sarantos, M. Benna, and N. Mouawad, Monte Carlo modeling of sodium in
Mercury's exosphere during the first two MESSENGER flybys, Icarus, 209,
63-74, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BURGERETAL2012"
REFERENCE_DESC                 = "
Burger, M.H., R.M. Killen, W.E. McClintock, R.J. Vervack, Jr., A.W. Merkel,
A.L. Sprague, and M. Sarantos, Modeling MESSENGER observations of calcium in
Mercury's exosphere: Flyby observations, Journal of Geophysical Research,
117, E00L11, doi:10.1029/2012JE004158, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BURGERETAL2014"
REFERENCE_DESC                 = "
Burger, M.H., R.M. Killen, W.E. McClintock, A.W. Merkel, R.J. Vervack, Jr.,
T.A. Cassidy, and M. Sarantos, Seasonal variations in Mercury's dayside
calcium exosphere, Icarus, 238, 51-58, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BURKSETAL2004"
REFERENCE_DESC                 = "
Burks, M., C.P. Cork, D. Eckels, E. Hull, N.W. Madden, W. Miller, J.
Goldsten, E. Rhodes, and B. Williams, Thermal design and performance of
the gamma-ray spectrometer for the MESSENGER spacecraft, Proceedings of
the IEEE Nuclear Science Symposium, 2004, edited by J.A. Seibert, vol.
1, pp. 390-394, Institute of Electrical and Electronics Engineers,
Piscataway, NJ, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BYRNEETAL2013"
REFERENCE_DESC                 = "
Byrne, P.K., C. Klimczak, D.A. Williams, D.M. Hurwitz, S.C. Solomon, J.W.
Head, F. Preusker, and J. Oberst, An assemblage of lava flow features on
Mercury, Journal of Geophysical Research: Planets, 118, 1303-1322,
doi:10.1002/jgre.20052, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "BYRNEETAL2014"
REFERENCE_DESC                 = "
Byrne, P.K., C. Klimczak, A, M.C. Sengor, S.C. Solomon, T.R. Watters, and
S.A. Hauck, II, Mercury's global contraction much greater than earlier
estimates, Nature Geoscience, 7, 301-307, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CASSIDYETAL2015"
REFERENCE_DESC                 = "
Cassidy, T.A., A.W. Merkel, M.H. Burger, M. Sarantos, R.M. Killen, W.E.
McClintock, and R.J. Vervack, Jr., Mercury's seasonal sodium exosphere:
MESSENGER orbital observations, Icarus, 248, 547-559, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CAVANAUGHETAL2007"
REFERENCE_DESC                 = "
Cavanaugh, J.F., J.C. Smith, X. Sun, A.E. Bartels, L. Ramos- Izquierdo,
D.J. Krebs, A.M. Novo-Gradac, J.F. McGarry, R. Trunzo, J.L. Britt, J. Karsh,
R.B. Katz, A. Lukemire, R. Szymkiewicz, D.L. Berry, J.P. Swinski,
G.A. Neumann, M.T. Zuber, and D.E. Smith, The Mercury Laser Altimeter
instrument for the MESSENGER mission, Space Science Reviews, 131, 451-479,
2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHABOTETAL2012"
REFERENCE_DESC                 = "
Chabot, N.L., C.M. Ernst, B.W. Denevi, J.K. Harmon, S.L. Murchie, D.T.
Blewett, S.C. Solomon, and E.D. Zhong, Areas of permanent shadow in Mercury's
south polar region ascertained by MESSENGER orbital imaging, Geophysical
Research Letters, 39, L09204, doi:10.1029/2012GL051526, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHABOTETAL2013"
REFERENCE_DESC                 = "
Chabot, N.L., C.M. Ernst, J.K. Harmon, S.L. Murchie, S.C. Solomon, D.T.
Blewett, and B.W. Denevi, Craters hosting radar-bright deposits in
Mercury's north polar region: Areas of persistent shadow determined from
MESSENGER images, Journal of Geophysical Research: Planets, 118, 26-36,
doi:10.1029/2012JE004172, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHABOTETAL2014"
REFERENCE_DESC                 = "
Chabot, N.L., C.M. Ernst, B.W. Denevi, H. Nair, A.N. Deutsch, D.T. Blewett,
S.L. Murchie, G.A. Neumann, E. Mazarico, D.A. Paige, J.K. Harmon, J.W. Head,
and S.C. Solomon, Images of surface volatiles in Mercury's polar craters
acquired by the MESSENGER spacecraft, Geology, 42, 1051-1054, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHAMBERLAIN1963"
REFERENCE_DESC                 = "
Chamberlain, J.W., Planetary coronae and atmospheric evaporation, Planetary 
and Space Science, 11, 901, 1963."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHAPMAN2002"
REFERENCE_DESC                 = "
Chapman, C.R., Planetary exploration, Science Books and Films, American
Association for the Advancement of Science, 38 (3), 391-394, May/June
2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHENETAL2008"
REFERENCE_DESC                 = "
Chen, B., J. Li, and S.A. Hauck, II, Non-ideal liquidus curve in the Fe-S
system and Mercury's snowing core, Geophysical Research Letters, 35, L07201,
doi:10.1029/2008GL033311, April 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHOOETAL2009"
REFERENCE_DESC                 = "
Choo, T.H., B.J. Anderson, R.J. Steele, J.P. Skura, and P.D. Bedini, An
automated science observation scheduling system for MESSENGER, 60th
International Astronautical Congress, paper IAC-02-C1.3.8, 8 pp., Daejeon,
Republic of Korea, October 12-16, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHOOETAL2009B"
REFERENCE_DESC                 = "
Choo., T.H., B.J. Anderson, P.D. Bedini, E.J. Finnegan, J.P. Skura, and
R.J. Steele, The MESSENGER science planning and commanding system, Space 2009
Conference and Exposition, American Institute of Aeronautics and
Astronautics, paper AIAA-2009-6462, 11 pp., Pasadena, CA,
September 14-17, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHOOETAL2011"
REFERENCE_DESC                 = "
Choo, T.H., R.J. Steele, L. Nguyen, H. Nair, M. Lucks, and P.D. Bedini,
MESSENGER SciBox, an automated closed-loop science planning and commanding
system, Space 2011 Conference and Exposition, American Institute of
Aeronautics and Astronautics, paper AIAA-2011-7339, 6 pp., Long Beach, CA,
September 27-29, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHOOETAL2011B"
REFERENCE_DESC                 = "
Choo, T.H., S.L. Murchie, P.D. Bedini, R.J. Steele, J.P. Skura, L. Nguyen, H.
Nair, M. Lucks, A.J. Berman, J.A. McGovern, and F.S. Turner, SciBox: An
automated end-to-end science planning and commanding system, 9th Low-Cost
Planetary Missions Conference, International Academy of Astronautics, 8 pp.,
Laurel, MD, June 21-23, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CHOOETAL2014"
REFERENCE_DESC                 = "
Choo, T.H., S.L. Murchie, P.D. Bedini, R.J. Steele, J.P. Skura, L. Nguyen, H.
Nair, M. Lucks, A.F. Berman, J.A. McGovern, and F.S. Turner, SciBox, an end-
to-end automated science planning and commanding system, Acta Astronautica,
93, 490-496, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CONDEETAL2002"
REFERENCE_DESC                 = "
Conde, R.F., J.W. Haber, R.W. Webbert, R.J. Redman, J.D. Mellert,
J.F. Bogdanski, S.X. Ling, and D.M. Hutcheson, Benefits and lessons
learned from the use of the compact PCI standard for spacecraft
avionics, 21st Digital Avionics Systems Conference, Paper 9B5, 11 pp.,
Irvine, CA, October 27-31, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "COOPER2006"
REFERENCE_DESC                 = "
Cooper, S.B., From Mercury to Pluto: A common approach to mission
timekeeping, Institute of Electrical and Electronics Engineers (IEEE)
Aerospace and Electronic Systems Magazine, vol. 21, no. 10, pp. 18-23,
2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "COOPERETAL2012"
REFERENCE_DESC                 = "
Cooper, S.B., J.R. Jensen, and G.L. Weaver, MESSENGER onboard timekeeping
accuracy during the first year in orbit at Mercury, Proceedings of the 44th
Annual Precise Time and Time Interval Systems and Applications Meeting, pp.
361-370, Reston, VA, November 26-29, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "COOPER2013"
REFERENCE_DESC                 = "
Cooper, S.B., A practical application of relativity to observation and
control of MESSENGER timekeeping, Johns Hopkins APL Technical Digest, 32,
388-394, June 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "CORSIETAL2011"
REFERENCE_DESC                 = "
Corsi, A., E.O. Ofek, D.A. Frail, D. Poznanski, J. Arcavi, A. Gal-Yam, S.R.
Kulkarni, K. Hurley, P.A. Mazzali, D.A. Howell, M.M. Kasliwal, Y. Green, D.
Murray, M. Sullivan, D. Xu, S. Ben-ami, J.S. Bloom, S.B. Cenko, N.M. Law, P.
Nugent, R.M. Quimby, V. Pal'shin, J. Cummings, V. Connaughton, K. Yamaoka, A.
Rau, W. Boynton, I. Mitrofanov, and J. Goldsten, PTF 10bzf: A broad-line Ic
supernova discovered by the Palomar transient factory, Astrophysical Journal,
741, article 76, 13 pp., 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DAKERMANJI&JENK2006"
REFERENCE_DESC                 = "
Dakermanji, G., J. Jenkins, and C.J. Ercol, The MESSENGER spacecraft
solar array design and early mission performance, Institute of
Electrical and Electronics Engineers (IEEE) World Conference on
Photovoltaic Energy Conversion, 1919-1922, Waikoloa, HI, May 7-12,
2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DAKERMANJIETAL2002"
REFERENCE_DESC                 = "
Dakermanji, G., J. Jenkins, P. Schwartz, and L. Kennedy, the messenger
spacecraft power system. Proceedings of the sixth european space power
conference, special publication sp-502, pp. 121-128, European space
agency, noordwijk, the netherlands, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DAKERMANJIETAL2005"
REFERENCE_DESC                 = "
Dakermanji, G., C. Person, J. Jenkins, L. Kennedy, and D. Temkin, The
MESSENGER spacecraft power system design and early mission performance,
Proceedings of the 7th European Space Power Conference, Special
Publication SP-589, European Space Agency, Noordwijk, The Netherlands,
CD-ROM, May 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DENEVI&ERNST2011"
REFERENCE_DESC                 = "
Denevi, B., and C. Ernst, MESSENGER: Revealing Mercury's secrets, Lunar and
Planetary Information Bulletin, no. 127, pp. 2-5, Lunar and Planetary
Institute, Universities Space Research Association, Houston, Tex.,
http://www.lpi.usra.edu/publications/newsletters/lpib/lpib_past.shtml,
December 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DENEVIETAL2009"
REFERENCE_DESC                 = "
Denevi, B.W., M.S. Robinson, S.C. Solomon, S.L. Murchie, D.T. Blewett, D.L.
Domingue, T.J. McCoy, C.M. Ernst, J.W. Head, T.R. Watters, and N.L. Chabot,
The evolution of Mercury's crust: A global perspective from MESSENGER,
Science, 324, 613-618, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DENEVIETAL2013"
REFERENCE_DESC                 = "
Denevi, B.W., C.M. Ernst, H.M. Meyer, M.S. Robinson, S.L. Murchie, J.L.
Whitten, J.W. Head, T.R. Watters, S.C. Solomon, L.R. Ostrach, C.R. Chapman,
P.K. Byrne, C. Klimczak, and P.N. Peplowski, The distribution and origin of
smooth plains on Mercury, Journal of Geophysical Research: Planets, 118,
891-907, doi:10.002/jgre.20075, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DEWEYETAL2015"
REFERENCE_DESC                 = "
Dewey, R.M., D.N. Baker, B.J. Anderson, M. Benna, C.L. Johnson, H. Korth,
D.J. Gershman, G.C. Ho, W.E. McClintock, D. Odstrcil, L.C. Philpott, J.M.
Raines, D. Schriver, J.A. Slavin, S.C. Solomon, R.M. Winslow, and T.H.
Zurbuchen, Improving solar wind modeling at Mercury: Incorporating transient
solar phenomena into the WSA-ENLIL model with the Cone extension, Journal of
Geophysical Research: Space Physics, 120, 5667-5685, 
doi:10.1002/2015JA021194, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DIBRACCIOETAL2013"
REFERENCE_DESC                 = "
DiBraccio, G.A., J.A. Slavin, S.A. Boardsen, B.J. Anderson, H. Korth, T.H.
Zurbuchen, J.M. Raines, D.N. Baker, R.L. McNutt, Jr., and S.C. Solomon,
MESSENGER observations of magnetopause structure and dynamics at Mercury,
Journal of Geophysical Research: Space Physics, 118, 997-1008,
doi:10.1002/jgra.50123, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DIBRACCIOETAL2015"
REFERENCE_DESC                 = "
DiBraccio, G.A., J.A. Slavin, J.M. Raines, D.J. Gershman, P.J. Tracy, S.A.
Boardsen, T.H. Zurbuchen, B.J. Anderson, H. Korth, R.L. McNutt, Jr., and S.C.
Solomon, First observations of Mercury's plasma mantle by MESSENGER,
Geophysical Research Letters, 42, 9666-9675, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DIBRACCIOETAL2015B"
REFERENCE_DESC                 = "
DiBraccio, G.A., J.A. Slavin, S.M. Imber, D.J. Gershman, J.M. Raines, C.M.
Jackman, S.A. Boardsen, B.J. Anderson, H. Korth, T.H. Zurbuchen, R.L. McNutt,
Jr., and S.C. Solomon, MESSENGER observations of flux ropes in Mercury's
magnetotail, Planetary and Space Science, 115, 77-89,
doi:10.1016/j.pss.2014.12.016, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMBARDETAL2008"
REFERENCE_DESC                 = "
Dombard, A.J., and S.A. Hauck, II, Despinning plus global contraction and the
orientation of lobate scarps on Mercury: Predictions for MESSENGER, Icarus,
198, 274-276, November 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMINGUE2004"
REFERENCE_DESC                 = "
Domingue, D., MESSENGER - Extreme exploration, Lunar and Planetary
Information Bulletin, no. 99, pp. 2-5, Lunar and Planetary Institute,
Universities Space Research Association, Houston, TX., August 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMINGUE&RUSSELL2007"
REFERENCE_DESC                 = "
Domingue, D.L., and C.T. Russell, Foreword, Space Science Reviews, 131, 1-2,
2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMINGUEETAL2007"
REFERENCE_DESC                 = "
Domingue, D.L., P.L. Koehn, R.M. Killen, A.L. Sprague, M. Sarantos,
A.F. Cheng, E.T. Bradley, and W.E. McClintock, Mercury's atmosphere:
A surface-bounded exosphere, Space Science Reviews, 131, 161-186, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMINGUEETAL2010"
REFERENCE_DESC                 = "
Domingue, D.L., F. Vilas, G.M. Holsclaw, J. Warell, N.R. Izenberg, S.L.
Murchie, B.W. Denevi, D.T. Blewett, W.E. McClintock, B.J. Anderson, and M.
Sarantos, Whole-disk spectrophotometric properties of Mercury: Synthesis of
MESSENGER and ground-based observations, Icarus, 209, 101-124, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMINGUEETAL2011"
REFERENCE_DESC                 = "
Domingue, D.L., S.L. Murchie, N.L. Chabot, B.W. Denevi, and F. Vilas,
Mercury's spectrophotometric properties: Update from the Mercury Dual Imaging
System observations during the third MESSENGER flyby, Planetary and Space
Science, 59, 1853-1872, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMINGUEETAL2011B"
REFERENCE_DESC                 = "
Domingue, D.L., S.L. Murchie, B.W. Denevi, N.L. Chabot, D.T. Blewett, N.R.
Laslo, R.M. Vaughan, H.K. Kang, and M.K. Shepard, Photometric correction of
Mercury's global color mosaic, Planetary and Space Science, 59, 1873-1887,
2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMINGUEETAL2014"
REFERENCE_DESC                 = "
Domingue, D.L., C.R. Chapman, R.M. Killen, T.H. Zurbuchen, J.A. Gilbert, M.
Sarantos, M. Benna, J.A. Slavin, D. Schriver, P.M. Travnicek, T.M.
Orlando, A.L. Sprague, D.T. Blewett, J.J. Gillis-Davis, W.C. Feldman, D.J.
Lawrence, G.C. Ho, D.S. Ebel, L.R. Nittler, F. Vilas, C.M. Pieters, S.C.
Solomon, C.L. Johnson, R.M. Winslow, J. Helbert, P.N. Peplowski, S.Z. Weider,
N. Mouawad, N.R. Izenberg, and W.E. McClintock, Mercury's weather-beaten
surface: Understanding Mercury in the context of lunar and asteroidal space
weathering studies, Space Science Reviews, 181, 121-214, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMINGUEETAL2015"
REFERENCE_DESC                 = "
Domingue, D.L., S.L. Murchie, B.W. Denevi, C.M. Ernst, and N.L. Chabot,
Mercury's global color mosaic: An update from MESSENGER's orbital
observations, Icarus, 257, 477-488, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMINGUEETAL2016"
REFERENCE_DESC                 = "
Domingue, D.L., B.W. Denevi, S.L. Murchie, and C.D. Hash, Application of
multiple photometric models to disk-resolved measurements of Mercury's
surface: insights into Mercury's regolith characteristics, Icarus, 268,
172-203, 2016"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DOMMER&WILEY2006"
REFERENCE_DESC                 = "
Dommer, K., and S. Wiley, Systems engineering approach used in the
development of the MESSENGER propulsion system, 42nd American Institute
of Aeronautics and Astronautics/American Society of Mechanical
Engineers/Society of Automotive Engineers/American Society for
Engineering Education (AIAA/ASME/SAE/ASEE) Joint Propulsion Conference,
Paper AIAA 2006-5216, 18 pp., Sacramento, CA, July 9-12, 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DSN810-5"
REFERENCE_DESC                 = "
Deep Space Network / Flight Project Interface Design Book, Document 810-5,
Rev. E, Jet Propulsion Laboratory, Pasadena, CA, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "DUNHAMETAL2010"
REFERENCE_DESC                 = "
Dunham, D.W., J.V. McAdams, D.P. Moessner, and D.R. Ottesen, Contingency
plans for MESSENGER's Mercury orbit insertion maneuver, 20th Astrodynamics
Specialist Conference, American Astronautical Society/American Institute of
Aeronautics and Astronautics, paper AIAA-2010-8252, 18 pp., Toronto, Ontario,
Canada, August 2-5, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ELGNERETAL2014"
REFERENCE_DESC                 = "
Elgner, S., A. Stark, J. Oberst, M.E. Perry, M.T. Zuber, M.S. Robinson, and
S.C. Solomon, Mercury's global shape and topography from MESSENGER limb
images, Planetary and Space Science, 103, 299-308, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ENSORETAL2012"
REFERENCE_DESC                 = "
Ensor, S.L., M.R. Reid, A.A. Mick, F.S. Turner, Jr., H.W. Taylor, E. Malaret,
R.C. Espiritu, and C.H. Hash, Lessons learned for NASA missions delivering
data to the Planetary Data System, Space 2012 Conference and Exposition,
American Institute of Aeronautics and Astronautics, paper AIAA-2012-5257, 11
pp., Pasadena, CA, September 11-13, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ERCOL&SANTO1999"
REFERENCE_DESC                 = "
Ercol, C.J., and A.G. Santo, Determination of optimum thermal phase
angles at Mercury perihelion for an orbiting spacecraft, 29th
International Conference on Environmental Systems, Society of Automotive
Engineers, Tech. Paper Ser., 1999-01-21123,10 pp., Denver, CO, July
21-25, 1999."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ERCOL2007"
REFERENCE_DESC                 = "
Ercol, C.J., MESSENGER heritage: High-temperature technologies for inner
solar system spacecraft, Space 2007 Conference, American Institute of
Aeronautics and Astronautics, paper AIAA 2007-6188, 8 pp., Long Beach, CA,
September 18-20, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ERCOL2008"
REFERENCE_DESC                 = "
Ercol, C.J., Return to Mercury: An overview of the MESSENGER spacecraft
thermal control system design and up-to-date flight performance, 38th
International Conference on Environmental Systems, SAE International, paper
2008-01-2123, 15 pp., San Francisco, CA, June 29 - July 2, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ERCOL2010"
REFERENCE_DESC                 = "
Ercol, C.J., The MESSENGER spacecraft power system: Thermal performance
through Mercury flyby 3, 8th International Energy Conversion Engineering
Conference, American Institute of Aeronautics and Astronautics, paper
AIAA-2010-6848, 16 pp., Nashville, TN, July 25-28, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ERCOLETAL2000"
REFERENCE_DESC                 = "
Ercol, C.J., J.E. Jenkins, G. Dakermanji, A.G. Santo, and L.S.
Mason, Prototype solar panel development and testing for a Mercury
orbiter spacecraft, 35th Intersociety Energy Conversion Engineering
Conference, American Institute of Aeronautics and Astronautics, Paper
AIAA-2000-2881, 11 pp., Las Vegas, NV, July 24-28, 2000."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ERCOLETAL2006"
REFERENCE_DESC                 = "
Ercol, C.J., G. Dakermanji, and B. Le, The MESSENGER spacecraft system
thermal design, flight electrical and thermal performance, 4th
International Energy Conversion Engineering Conference, American
Institute of Aeronautics and Astronautics, San Diego, CA, paper
AIAA-4144, 10 pp., June 26-29, 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ERCOLETAL2008"
REFERENCE_DESC                 = "
Ercol, C.J., G. Dakermanji, and S.C. Laughery, The MESSENGER spacecraft power
system: Thermal performance through the first Mercury flyby, 6th
International Energy Conversion Engineering Conference, American Institute of
Aeronautics and Astronautics, paper AIAA-2008-5785, 12 pp., Cleveland, OH,
July 28-30, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ERCOLETAL2012"
REFERENCE_DESC                 = "
Ercol, C.J., S.M. Begley, and G.A. Holtzman, Return to Mercury: An overview
of the MESSENGER spacecraft thermal control design and update on orbital
flight performance, Thermal and Fluids Analysis Workshop, paper
TFAWS2012-PT-03, 26 pp., Pasadena, CA, August 13-17, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ERNSTETAL2010"
REFERENCE_DESC                 = "
Ernst, C.M., S.L. Murchie, O.S. Barnouin-Jha, M.S. Robinson, B.W. Denevi,
D.T. Blewett, J.W. Head, N.R. Izenberg, and S.C. Solomon, Exposure of
spectrally distinct material by impact craters on Mercury: Implications for
global stratigraphy, Icarus, 209, 210-223, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ERNSTETAL2015"
REFERENCE_DESC                 = "
Ernst, C.M., B.W. Denevi, O.S. Barnouin, C. Klimczak, N.L. Chabot, J.W. Head,
S.L. Murchie, G.A. Neumann, L.M. Prockter, M.S. Robinson, S.C. Solomon, and
T.R. Watters, Stratigraphy of the Caloris basin, Mercury: Implications for
volcanic history and basin impact melt, Icarus, 250, 413-429. 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "EVANSETAL2012"
REFERENCE_DESC                 = "
Evans, L.G., P.N. Peplowski, E.A. Rhodes, D.J. Lawrence, T.J. McCoy, L.R.
Nittler, S.C. Solomon, A.L. Sprague, K.R. Stockstill-Cahill, R.D. Starr, S.Z.
Weider, W.V. Boynton, D.K. Hamara, and J.O. Goldsten, Major-element
abundances on the surface of Mercury: Results from the MESSENGER Gamma-Ray
Spectrometer, Journal of Geophysical Research, 117, E00L07,
doi:10.1029/2012JE004178, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "EVANSETAL2015"
REFERENCE_DESC                 = "
Evans, L.G., P.N. Peplowski, F.M. McCubbin, T.J. McCoy, L.R. Nittler, M. Yu.
Zolotov, D.S. Ebel, D.J. Lawrence, R.D. Starr, S.Z. Weider, and S.C. Solomon,
Chlorine on the surface of Mercury: MESSENGER gamma-ray measurements and
implications for the planet's formation and evolution, Icarus, 257,
417-427, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FASSETTETAL2009"
REFERENCE_DESC                 = "
Fassett, C.I., J.W. Head, D.T. Blewett, C.R. Chapman, J.L. Dickson, S.C.
Solomon, T.R. Watters, Caloris impact basin: Exterior geomorphology,
stratigraphy, morphometry, radial sculpture, and smooth plains deposits,
Earth and Planetary Science Letters, 285, 297-308, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FASSETTETAL2011"
REFERENCE_DESC                 = "
Fassett, C.I., S.J. Kadish, J.W. Head, S.C. Solomon, and R.G. Strom, The
global population of large craters on Mercury and comparison with the Moon,
Geophysical Research Letters, 38, L10202, doi:10.1029/2011GL047294, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FASSETTETAL2012"
REFERENCE_DESC                 = "
Fassett, C.I., J.W. Head, D.M.H. Baker, M.T. Zuber, D.E. Smith, G.A. Neumann,
S.C. Solomon, C. Klimczak, R.G. Strom, C.R. Chapman, L.M. Prockter, R.J.
Phillips, J. Oberst, and F. Preusker, Large impact basins on Mercury: Global
distribution, characteristics, and modification history from MESSENGER
orbital data, Journal of Geophysical Research, 117, E00L08,
doi:10.1029/2012JE004154, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FELDMANETAL1986"
REFERENCE_DESC                 = "
Feldman, W.C., et al., A Doppler filter technique to measure the hydrogen 
content of planetary surfaces, Nucl. Instrum. Methods A245, 182, 1986."
END_OBJECT                      = REFERENCE
   
OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FELDMANETAL2010"
REFERENCE_DESC                 = "
Feldman, W.C., D.J. Lawrence, J.O. Goldsten, R.E. Gold, D.N. Baker, D.K.
Haggerty, G.C. Ho, S. Krucker, R.P. Lin, R.A. Mewaldt, R.J. Murphy, L.R.
Nittler, E.A. Rhodes, J.A. Slavin, S.C. Solomon, R.D. Starr, F. Vilas, and A.
Vourlidas, Evidence for extended acceleration of solar-flare ions from 1-8
MeV solar neutrons detected with the MESSENGER Neutron Spectrometer, Journal
of Geophysical Research, 115, A01102, doi:10.1029/2009JA014535, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FEYNMAN1963"
REFERENCE_DESC                 = "
Feynman, R.P., Feynman Lectures on Physics - Volume 1, Chapter 40, edited by 
Feynman, R.P., Leighton, R.B., and Sands, M., Reading, Ma., Addison-Wesley, 
1963."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FISCHBACHETAL2012"
REFERENCE_DESC                 = "
Fischbach, E., K.J. Chen, R.E. Gold, J.O. Goldsten, D.J. Lawrence, R.J.
McNutt, Jr., E.A. Rhodes, J.H. Jenkins, and J. Longuski, Solar influence on
nuclear decay rates: Constraints from the MESSENGER mission, Astrophysics and
Space Science, 337, 39-45, doi:10.1007/s10509-011-0808-5, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FLANIGANETAL2011"
REFERENCE_DESC                 = "
Flanigan, S.H., R. M Vaughan, and D.J. O'Shaughnessy, Guidance and control of
the MESSENGER spacecraft in the Mercury orbital environment, Astrodynamics
Specialist Conference, American Astronautical Society/ American Institute of
Aeronautics and Astronautics, paper AAS 11-550, 17 pp., Girdwood, AK, July 31
- August 4, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FLANIGANETAL2012"
REFERENCE_DESC                 = "
Flanigan, S.H., D.J. O'Shaughnessy, and E.J. Finnegan, Guidance and control
challenges to the MESSENGER spacecraft in achieving and operating from orbit
at Mercury, 35th Guidance and Control Conference, American Astronautical
Society, paper AAS 12-096, 18 pp., Breckenridge, CO, February 3-8, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FLANIGANETAL2013"
REFERENCE_DESC                 = "
Flanigan, S.H., D.J. O'Shaughnessy, M.N. Wilson, and T.A. Hill,
MESSENGER's maneuvers to reduce orbital period during the extended mission:
Ensuring maximum use of the bi-propellant propulsion system, 23rd Space
Flight Mechanics Meeting, American Astronautical Society/American Institute
of Aeronautics and Astronautics, paper AAS-13-382, 12 pp., Kauai, HI,
February 10-14, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FLANIGANETAL2015"
REFERENCE_DESC                 = "
Flanigan, S.H., M.N. Kirk, D.J. O'Shaugnessy, S.S. Bushman, and P.E.
Rosendall, The first three maneuvers during MESSENGER's low-altitude science
campaign, 38th Guidance and Control Conference, American Astronautical
Society, paper AAS 15-137, 12 pp., Breckenridge, CO, January 30 - February
4, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FREDERIKSETAL2008"
REFERENCE_DESC                 = "
Frederiks, D., R. Aptekar, T. Cline, J. Goldsten, S. Golenetskii, K. Hurley,
V. Ilinskii, A. von Keinlin, E. Mazets, and V. Palshin, GRB 051103 and GRB
070201 as giant flares from SGRs in nearby galaxies, in Gamma-Ray Bursts
2007: Proceedings of the Santa Fe Conference, edited by M. Galassi, D.
Palmer, and E. Fenimore, Conference Proceedings vol. 1000, American Institute
of Physics, Melville, N.Y., pp. 271-275, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FREEDETAL2009"
REFERENCE_DESC                 = "
Freed, A.M., S.C. Solomon, T.R. Watters, R.J. Phillips, and M.T. Zuber, Could
Pantheon Fossae be the result of the Apollodorus crater-forming impact within
the Caloris basin, Mercury?, Earth and Planetary Science Letters, 285,
320-327, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "FREEDETAL2012"
REFERENCE_DESC                 = "
Freed, A.M., D.M. Blair, T.R. Watters, C. Klimczak, P.K. Byrne, S.C. Solomon,
M.T. Zuber, and H.J. Melosh, On the origin of graben and ridges within and
near volcanically buried craters and basins in Mercury's northern plains,
Journal of Geophysical Research, 117, E00L06, doi:10.1029/2012JE004119, 
2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GEO-10REVD"
REFERENCE_DESC                 = "
DSN Geometry and Spacecraft Visibility, Document 810-5, Rev. D, Vol. 1,
DSN/Flight Project Interface Design, Jet Propulsion Laboratory,
Pasadena, CA, 1987."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GERSHMANETAL2012"
REFERENCE_DESC                 = "
Gershman, D.J., T.H. Zurbuchen, L.A. Fisk, J.A. Gilbert, J.M. Raines, B.J.
Anderson, C.W. Smith, H. Korth, and S.C. Solomon, Solar wind alpha particles
and heavy ions in the inner heliosphere, Journal of Geophysical Research,
117, A00M02, doi:10.1029/2012JA017829, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GERSHMANETAL2013"
REFERENCE_DESC                 = "
Gershman D.J., J.A. Slavin, J.M. Raines, T.H. Zurbuchen, B.J. Anderson, H.
Korth, D.N. Baker, and S.C. Solomon, Magnetic flux pile-up and plasma
depletion in Mercury's subsolar magnetosheath, Journal of Geophysical
Research: Space Physics, 118, 7181-7199, doi:10.1002/2013JA019244, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GERSHMANETAL2013B"
REFERENCE_DESC                 = "
Gershman, D.J., G. Gloeckler, J.A. Gilbert, J. M Raines, L.A. Fisk, S.C.
Solomon, E.C. Stone, and T.H. Zurbuchen, Observations of interstellar helium
pickup ions in the inner heliosphere, Journal of Geophysical Research: Space
Physics, 118, 1389-1402, doi:10.1002/jgra.50227, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GERSHMANETAL2014"
REFERENCE_DESC                 = "
Gershman, D.J., J.A. Slavin, J.M. Raines, T.H. Zurbuchen, B.J. Anderson, H.
Korth, D.N. Baker, and S.C. Solomon, Ion kinetic properties in Mercury's pre-
midnight plasma sheet, Geophysical Research Letters, 41, 5740-5747,
doi:10.1002/2014GL060468, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GERSHMANETAL2014B"
REFERENCE_DESC                 = "
Gershman, D.J., L.A. Fisk, G. Gloeckler, J.M. Raines, J.A. Slavin, T.H.
Zurbuchen, and S.C. Solomon, The velocity distribution of pickup He+ measured
at 0.3 AU by MESSENGER, Astrophysical Journal, 788, 124, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GERSHMANETAL2015"
REFERENCE_DESC                 = "
Gershman, D.J., J. M Raines, J.A. Slavin, T.H. Zurbuchen, B.J. Anderson, H.
Korth, G.C. Ho, S.A. Boardsen, T.A. Cassidy, B.M. Walsh, and S.C. Solomon,
MESSENGER observations of solar energetic electrons within Mercury's
magnetosphere, Journal of Geophysical Research: Space Physics, 120,
8559-8571, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GERSHMANETAL2015B"
REFERENCE_DESC                 = "
Gershman, D.J., J. M Raines, J.A. Slavin, T.H. Zurbuchen, T. Sundberg, S.A.
Boardsen, B.J. Anderson, H. Korth, and S.C. Solomon, MESSENGER observations
of multiscale Kelvin-Helmholtz vortices at Mercury, Journal of Geophysical
Research: Space Physics, 120, 4354-4368, doi:10.1002/2014JA020903, 2015."
END_OBJECT                      = REFERENCE


OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GILLIS-DAVISETAL2009"
REFERENCE_DESC                 = "
Gillis-Davis, J.J., D.T. Blewett, R.W. Gaskell, B.W. Denevi, M.S. Robinson,
R.G. Strom, S.C. Solomon, and A.L. Sprague, Pit-floor craters on Mercury:
Evidence of near-surface igneous activity, Earth and Planetary Science
Letters, 285, 243-250, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GOLDETAL2001"
REFERENCE_DESC                 = "
Gold, R.E., S.C. Solomon, R.L. McNutt, Jr., A.G. Santo, J.B. Abshire, 
M.H. Acuna, R.S. Afzal, B.J. Anderson, G.B. Andrews, P.D. Bedini, J. Cain, 
A.F. Cheng, L.G. Evans, W.C. Feldman, R.B. Follas, G. Gloeckler, 
J.O. Goldsten, S.E. Hawkins, III, N.R. Izenberg, S.E. Jaskulek, 
E.A. Ketchum, M.R. Lankton, D.A. Lohr, B.H. Mauk, W.E. McClintock, 
S.L. Murchie, C.E. Schlemm, II, D.E. Smith, R.D. Starr, and T.H. Zurbuchen, 
The MESSENGER mission to Mercury: Scientific payload, Planetary and Space 
Science, 49, 1467-1479, 2001."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GOLDETAL2002"
REFERENCE_DESC                 = "
Gold, R.E., S.C. Solomon, R.L. McNutt, Jr., and A.G. Santo, The
MESSENGER spacecraft and payload, International Astronautical Congress,
World Space Congress, American Institute of Aeronautics and
Astronautics, Paper IAC-02-Q.4.1.02, 9 pp., Houston, TX, October 10-19,
2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GOLDETAL2003"
REFERENCE_DESC                 = "
Gold, R.E., R.L. McNutt, Jr., S.C. Solomon, and the MESSENGER Team,
The MESSENGER science payload, Proceedings of the 5th International
Academy of Astronautics (IAA) International Conference on Low-Cost
Planetary Missions, Special Publication SP-542, edited by R.A. Harris,
pp. 399-405, European Space Agency, Noordwijk, The Netherlands, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GOLDSTENETAL2007"
REFERENCE_DESC                 = "
Goldsten, J.O., E.A. Rhodes,, W.V. Boynton, W.C. Feldman, D.J. Lawrence, 
J.I. Trombka, D.M. Smith, L.G. Evans, J. White, N.W. Madden, P.C. Berg, 
G.A. Murphy, R.S. Gurnee, K. Strohbehn, B.D. Williams, E.D. Schaefer, 
C.A. Monaco, C.P. Cork, J.D. Eckels, W.O. Miller, M.T. Burks, L.B. Hagler, 
S.J. Deteresa, and M.C. Witte, The MESSENGER Gamma-Ray and Neutron 
Spectrometer, Space Science Reviews, 131, 339-391, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GOUDGEETAL2014"
REFERENCE_DESC                 = "
Goudge, T.A., J.W. Head, L. Kerber, D.T. Blewett, B.W. Denevi, D.L. Domingue,
J.J. Gillis-Davis, K. Gwinner, J. Helbert, G.M. Holsclaw, N.R. Izenberg, R.L.
Klima, W.E. McClintock, S.L. Murchie, G.A. Neumann, D.E. Smith, R.G. Strom,
Z. Xiao, M.T. Zuber, and S.C. Solomon, Global inventory and characterization
of pyroclastic deposits on Mercury: New insights into pyroclastic activity
from MESSENGER orbital data, Journal of Geophysical Research: Planets, 119,
635-658, doi:10.1002/2013JE004480, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GOMEZ-PEREZ&SOLO2010"
REFERENCE_DESC                 = "
Gomez-Perez, N., and S.C. Solomon, Mercury's weak magnetic field: Result of
magnetospheric feedback?, Geophysical Research Letters, 37, L20204,
doi:10.1029/2010GL044533, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GOMEZ-PEREZ&WICH2010"
REFERENCE_DESC                 = "
Gomez-Perez, N., and J. Wicht, Mercury and Ganymede: Behavior of planetary
dynamos under the influence of external magnetic fields, Icarus, 209, 53-62,
2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "GORSKIETAL2004"
REFERENCE_DESC                 = "
Gorski, K.M., E. Hivon, A.J. Banday, B.D. Wandelt, F.K. Hansen, M. Reinecke, 
and M. Bartelman, HEALPix: A Framework for High-Resolution Discretization and
Fast Analysis of Data Distributed on the Sphere, Astrophysics, 622, 759-771, 
doi:10.1086/427976, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HAPKE1993"
REFERENCE_DESC                 = "Hapke, B., Theory of Reflectance
Spectroscopy (Topics in Remote Sensing, 3), Cambridge University
Press, 272, 1993."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HAUCK&FINNIGAN2003"
REFERENCE_DESC                 = "
Hauck, T.F., and J.V. Finnigan, Use of the ground support equipment
operating system (GSEOS) software on the MESSENGER mission: A case
study, Proceedings of the 5th International Symposium on Reducing the
Cost of Spacecraft Ground Systems and Operations, 8 pp., Pasadena, CA,
July 8-12, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HAUCKETAL2003"
REFERENCE_DESC                 = "
Hauck, T.F., and J.V. Finnigan, Use of the ground support equipment operating
system software on the MESSENGER mission: A case study, Proceedings of the
5th International Symposium on Reducing the Cost of Spacecraft Ground Systems
and Operations, paper 103-A0013, 8 pp., Pasadena, CA, July 8-12, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HAUCKETAL2004"
REFERENCE_DESC                 = "
Hauck, S.A., II, A.J. Dombard, R.J. Phillips, and S.C. Solomon,
Internal and tectonic evolution of Mercury, Earth and Planetary Science
Letters, 222, 713-728, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HAUCKETAL2007"
REFERENCE_DESC                 = "
Hauck, S.A., II, S.C. Solomon, and D.A. Smith, Predicted recovery of
Mercury's internal structure by MESSENGER, Geophysical Research Letters, 34,
L18201, doi:10.1029/2007GL030793, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HAUCKETAL2013"
REFERENCE_DESC                 = "
Hauck, S.A., II, J.-L. Margot, S.C. Solomon, R.J. Phillips, C.L. Johnson,
F.G. Lemoine, E. Mazarico, T.J. McCoy, S. Padovan, S.J. Peale, M.E. Perry,
D.E. Smith, and M.T. Zuber, The curious case of Mercury's internal
structure, Journal of Geophysical Research: Planets, 118, 1204-1220,
doi:10.1002/jgre.20091, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HAWKINSETAL2007"
REFERENCE_DESC                 = "
Hawkins, S.E., III, J. Boldt, E.H. Darlington, R. Espiritu, R.E.
Gold, B. Gotwols, M. Grey, C. Hash, J. Hayes, S. Jaskulek, C. Kardian,
M. Keller, E. Malaret, S.L. Murchie, P. Murphy, K. Peacock, L.
Prockter, A. Reiter, M.S. Robinson, E. Schaefer, R. Shelton, R.
Sterner, H. Taylor, T. Watters, and B. Williams, The Mercury Dual
Imaging System on the MESSENGER spacecraft, Space Science Reviews, 131,
247-338, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HAWKINSETAL2009"
REFERENCE_DESC                 = "
Hawkins, S.E., III, S.L. Murchie, K.J. Becker, C.M. Selby, F.S. Turner,
M.W. Noble, N.L. Chabot, T.H. Choo, E.H. Darlington, B.W. Denevi,
D.L. Domingue, C.M. Ernst, G.M. Holsclaw, N.R. Laslo, W.E. McClintock,
L.M. Prockter, M.S. Robinson, S.C. Solomon, and R.E. Sterner, II,
In-flight performance of MESSENGER's Mercury Dual Imaging System,
Proceedings of the SPIE, Volume 7441, pp. 74410Z-74410Z-12, 2009.
"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HEADETAL2007"
REFERENCE_DESC                 = "
Head, J.W., C.R. Chapman, D.L. Domingue, S.E. Hawkins, III, W.E.
McClintock, S.L. Murchie, L.M. Prockter, M.S. Robinson, R.G. Strom,
and T.R. Watters, The geology of Mercury: The view prior to the
MESSENGER mission, Space Science Reviews, 131, 41-84, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HEADETAL2008"
REFERENCE_DESC                 = "
Head, J.W., S.L. Murchie, L.M. Prockter, M.S. Robinson, S.C. Solomon, R.G.
Strom, C.R. Chapman, T.R. Watters, W.E. McClintock, D.T. Blewett, and J.J.
Gillis-Davis, Volcanism on Mercury: Evidence from the first MESSENGER flyby,
Science, 321, 69-72, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HEADETAL2009"
REFERENCE_DESC                 = "
Head, J.W., S.L. Murchie, L.M. Prockter, S.C. Solomon, C.R. Chapman, R.G.
Strom, T.R. Watters, D.T. Blewett, J.J. Gillis-Davis, C.I. Fassett, J.L.
Dickson, G.A. Morgan, and L. Kerber, Volcanism on Mercury: Evidence from the
first MESSENGER flyby for extrusive and explosive activity and the volcanic
origin of plains, Earth and Planetary Science Letters, 285, 227-242, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HEADETAL2009B"
REFERENCE_DESC                 = "
Head, J.W., S.L. Murchie, L.M. Prockter, S.C. Solomon, R.G. Strom, C.R.
Chapman, T.R. Watters, D.T. Blewett, J.J. Gillis-Davis, C.I. Fassett, J.L.
Dickson, D.M. Hurwitz, and L.R. Ostrach, Evidence for intrusive activity on
Mercury from the first MESSENGER flyby, Earth and Planetary Science Letters,
285, 251-262, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HEADETAL2011"
REFERENCE_DESC                 = "
Head, J.W., C.R. Chapman, R.G. Strom, C.I. Fassett, B.W. Denevi, D.T.
Blewett, C.M. Ernst, T.R. Watters, S.C. Solomon, S.L. Murchie, L.M. Prockter,
N.L. Chabot, J.J. Gillis-Davis, J.L. Whitten, T.A. Goudge, D.M.H. Baker, D.M.
Hurwitz, L.R. Ostrach, Z. Xiao, W.J. Merline, L. Kerber, J.L. Dickson, J.
Oberst, P.K. Byrne, C. Klimczak, and L.R. Nittler, Flood volcanism in the
high northern latitudes of Mercury revealed by MESSENGER, Science, 333,
1853-1856, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HEILIGMANETAL2003"
REFERENCE_DESC                 = "
Heiligman, G.M., T.A. Hill, R.L. LeGrys, and S.P. Williams, An
incremental strategy for spacecraft flight software reuse, 1st
International Conference on Space Mission Challenges for Information
Technology, 8 pp., Pasadena, CA, July 13-16, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HELBERT&MATURILL2009"
REFERENCE_DESC                 = "
Helbert, J., and A. Maturilli, The emissivity of a fine-grained labradorite
sample at typical Mercury dayside temperatures, Earth and Planetary Science
Letters, 285, 347-354, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HOETAL2011"
REFERENCE_DESC                 = "
Ho, G.C., R.D. Starr, R.E. Gold, S.M. Krimigis, J.A. Slavin, D.N. Baker, B.J.
Anderson, R.J. McNutt, Jr., L.R. Nittler, and S.C. Solomon, Observations of
suprathermal electrons in Mercury's magnetosphere during the three MESSENGER
flybys, Planetary and Space Science, 59, 2016-2025, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HOETAL2011B"
REFERENCE_DESC                 = "
Ho, G.C., Krimigis, S.M., R.E. Gold, D.N. Baker, J.A. Slavin, B.J. Anderson,
H. Korth, R.D. Starr, D.J. Lawrence, R.L. McNutt, Jr., and S.C. Solomon,
MESSENGER observations of transient bursts of energetic electrons in
Mercury's magnetosphere, Science, 333, 1865-1868, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HOETAL2012"
REFERENCE_DESC                 = "
Ho, G.C., S.M. Krimigis, R.E. Gold, D.N. Baker, B.J. Anderson, H. Korth, J A.
Slavin, R.L. McNutt, Jr., R.M. Winslow, and S.C. Solomon, Spatial
distribution and spectral characteristics of energetic electrons in Mercury's
magnetosphere, Journal of Geophysical Research, 117, A00M04,
doi:10.1029/2012JA017983, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HOETAL2016"
REFERENCE_DESC                 = "
Ho, G.C., R.D. Starr S.M. Krimigis, J.D. Vandegriff, D.N. Baker, R.E. Gold,
B.J. Anderson, H. Korth, D. Schriver, R.L. McNutt, Jr., and S.C. Solomon,
MESSENGER observations of suprathermal electrons in Mercury's
magnetosphere, Geophysical Research Letters, 43, 550-555, 2016."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HOLDRIDGE&CALLO2007"
REFERENCE_DESC                 = "
Holdridge, M.E., and A.B. Calloway, Launch and early operations of the
MESSENGER mission, Space Science Reviews, 131, 573-600, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HOLSCLAWETAL2010"
REFERENCE_DESC                 = "
Holsclaw, G.M., W.E. McClintock, M.S. Robinson, D.L. Domingue, N.R. Izenberg,
D.T. Blewett, and A.L. Sprague, A comparison of the ultraviolet to near-
infrared spectral properties of Mercury and the Moon as observed by
MESSENGER, Icarus, 209, 179-194, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HOLTZMANETAL2015"
REFERENCE_DESC                 = "
Holtzman, G.A., S.M. Begley, and C.J. Ercol, Return to Mercury: An overview
of the MESSENGER spacecraft thermal environmental predictions and analysis
process, International Conference on Environmental Systems, paper
ICES-2015-307, 14 pp., Bellevue, WA, July 12-16, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HUDSON&COLWELL2011"
REFERENCE_DESC                 = "
Hudson, J.F., and E.J. Colwell, Spacecraft clock maintenance for MESSENGER
operations, Space 2011 Conference and Exposition, American Institute of
Aeronautics and Astronautics, paper AIAA-2011-7183, 10 pp., Long Beach, CA,
September 27-29, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HURLEYETAL2009"
REFERENCE_DESC                 = "
Hurley, K., T. Kline, I.G. Mitrofanov, D. Golovin, M.L. Litvak, A.B. Sanin,
W. Boynton, C. Fellow, K. Harshman, R. Starr, S. Golenetskii, R. Aptekar, E.
Mazets, V. Pal'shin, D. Frederiks, D.M. Smith, C. Wigger, W. Hajdas, A.
Zehnder, A. von Kienlin, G.G. Lichti, A. Rau, K. Yamaoka, M. Ohno, Y.
Fuzakawa, T. Takahashi, M. Tashiro, Y. Terada, T. Murakami, K. Makishima, S.
Barthelmy, J. Cummings, N. Gehrels, H. Krimm, J. Goldsten, E. Del Monte, M.
Feroci, and M. Marisaldi, The status and future of the third interplanetary
network, in Gamma-Ray Bursts: 6th Huntsville Symposium, edited by C. Meegan,
N. Gehrels, and C. Kouveliotou, Conference Proceedings vol. 1133, American
Institute of Physics, Melville, N.Y., pp. 55-57, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HURLEYETAL2011"
REFERENCE_DESC                 = "
Hurley, K., J.L. Atteia, C. Barraud, A. Pelangeon, M. Boer, R. Vanderspek, G.
Ricker, E. Mazets, S. Golenetskii, D.D. Frederiks, V.D. Pal'shin, R.L.
Aptekar, D.S. Smith, C. Wigger, W. Hajdas, A. Rau, A. von Kienlin, I.G.
Mitrofanov, D.V. Golovin, A.S. Kozyrev, M.L. Litvak, A.B. Sanin, W. Boynton,
C. Fellows, K. Harshman, S. Barthelmy, T. Kline, J. Cummings, N. Gehrels,
H.A. Krimm, K. Yamaoka, Y. Fukazawa, Y. Hanabata, M. Ohno, T. Takahashi, M.
Tashiro, Y. Terada, T. Murakami, E. Makishima, C. Guidorzi, F. Frontera, C.E.
Montanari, F. Rossi, J. Trombka, T. McClanahan, R. Starr, J. Goldsten, and R.
Gold, The interplanetary network supplement to the HETE-2 gamma-ray burst
catalog, Astrophysical Journal Supplement Series, 197, article 34, 13 pp.,
2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "HURWITZETAL2013"
REFERENCE_DESC                 = "
Hurwitz, D.M., J.W. Head, P.K. Byrne, Z. Xiao, S.C. Solomon, M.T. Zuber, D.E.
Smith, and G.A. Neumann, Investigating the origin of candidate lava channels
on Mercury with MESSENGER data: Theory and observations, Journal of
Geophysical Research: Planets, 118, 471-485, doi:10.1029/2012JE004103, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "IMBERETAL2014"
REFERENCE_DESC                 = "
Imber, S.M., J.A. Slavin, S.A. Boardsen, B.J. Anderson, H. Korth, R.L.
McNutt, Jr., and S.C. Solomon, MESSENGER observations of large dayside flux
transfer events: Do they drive Mercury's substorm cycle, Journal of
Geophysical Research: Space Physics, 119, 5613-5623, 
doi:10.1002/2014JA019884, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "IZENBERGETAL2014"
REFERENCE_DESC                 = "
Izenberg, N.R., R.L. Klima, S.L. Murchie, D.T. Blewett, G.M. Holsclaw, W.E.
McClintock, E. Malaret, C. Mauceri, F. Vilas, A.L. Sprague, J. Helbert, D.L.
Domingue, J.W. Head III, T.A. Goudge, S.C. Solomon, C.A. Hibbitts, and M.D.
Dyar, The low-iron, reduced surface of Mercury as seen in spectral
reflectance by MESSENGER, Icarus, 228, 364-374, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "JAMESETAL2015"
REFERENCE_DESC                 = "
James, P.B., M.T. Zuber, R.J. Phillips, and S.C. Solomon, Support of long-
wavelength topography on Mercury inferred from MESSENGER measurements of
gravity and topography, Journal of Geophysical Research: Planets, 120,
287-310, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "JENSENETAL2013"
REFERENCE_DESC                 = "
Jensen, E.A., M. Nolan, M.M. Bisi, I. Chasei, and F. Vilas, MESSENGER
observations of magnetohydrodynamic waves in the solar corona from Faraday
rotation, Solar Physics, 285, 71-82, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "JENSENETAL2013B"
REFERENCE_DESC                 = "
Jensen, E.A., M.M. Bisi, A.R. Breen, C. Heiles, T. Minter, and F. Vilas,
Measurements of Faraday rotation through the solar corona during the 2009
solar minimum with the MESSENGER spacecraft, Solar Physics, 285, 83-95, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "JOHNSONETAL2012"
REFERENCE_DESC                 = "
Johnson, C.L., M.E. Purucker, H. Korth, B.J. Anderson, R.M. Winslow, M.M.H.
Al Asad, J.A. Slavin, I.I. Alexeev, R.J. Phillips, M.T. Zuber,, and S.C.
Solomon, MESSENGER observations of Mercury's magnetic field structure,
Journal of Geophysical Research, 117, E00L14, doi:10.1029/JE004217, 2012."
END_OBJECT                      = REFERENCE

OBJECT = REFERENCE
REFERENCE_KEY_ID                = "JPLD-16765"
REFERENCE_DESC                 = "
Deep Space Mission System (DSMS) External Interface Specification (820-013,
JPL D-16765), Radio Science Receiver Standard Formatted Data Unit (SFDU), Jet
Propulsion Laboratory, Pasadena, CA, 2001."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "JOHNSONETAL2015"
REFERENCE_DESC                 = "
Johnson, C.L., R.J. Phillips, M.E. Purucker, B.J. Anderson, P.K. Byrne, B.W.
Denevi, J.M. Feinberg, S.A. Hauck II, J.W. Head III, H. Korth, P.B. James, E.
Mazarico, G.A. Neumann, L.C. Philpott, M.A. Siegler, N.A. Tsyganenko, and
S.C. Solomon, Low-altitude magnetic field measurements by MESSENGER reveal
Mercury's ancient crustal field, Science, 348, 892-895, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "JOHNSONETAL2016"
REFERENCE_DESC                 = "
Johnson, C.L., L.C. Philpott, B.J. Anderson, H. Korth, S.A. Hauck, II, D.
Heyner, R.J. Phillips, R. M Winslow, and S.C. Solomon, MESSENGER observations
of induced magnetic fields in Mercury's core, Geophysical Research Letters,
43, 2436-2444, 2016."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KABINETAL2008"
REFERENCE_DESC                 = "
Kabin, K., M.H. Heimpel, R. Rankin, J.M. Aurnou, N. Gomez-Perez, J. Paral,
T.I. Gombosi, T.H. Zurbuchen, P.L. Koehn, and D.L. DeZeeuw, Global MHD
modeling of Mercury's magnetosphere with applications to the MESSENGER
mission and dynamo theory, Icarus, 195, 1-15, May 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KENNEDYETAL2008"
REFERENCE_DESC                 = "
Kennedy, P.J., A.M. Freed, and S.C. Solomon, Mechanisms of faulting in and
around Caloris basin, Mercury, Journal of Geophysical Research, 113, E08004,
doi:10.1029/2007JE002992, August 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KERBERETAL2009"
REFERENCE_DESC                 = "
Kerber, L., J.W. Head, S.C. Solomon, S.L. Murchie, D.T. Blewett, and L.
Wilson, Explosive volcanic eruptions on Mercury: Eruption conditions, magma
volatile content, and implications for interior volatile abundances, Earth
and Planetary Science Letters, 285, 263-271, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KERBERETAL2011"
REFERENCE_DESC                 = "
Kerber, L., J.W. Head, D.T. Blewett, S.C. Solomon, L. Wilson, S.L. Murchie,
M.S. Robinson, B.W. Denevi, and D.L. Domingue, The global distribution of
pyroclastic deposits on Mercury: The view from MESSENGER flybys 1-3,
Planetary and Space Science, 59, 1895-1909, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KILLENETAL2009"
REFERENCE_DESC                 = "
Killen, R.M., A.E. Potter, R.J. Vervack, Jr., E.T. Bradley, W.E. McClintock,
C.M. Anderson, and M.H. Burger, Observations of metallic species in Mercury's
exosphere, Icarus, 209, 75-87, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KIRKETAL2015"
REFERENCE_DESC                 = "
Kirk, M.N., S.H. Flanigan, D.J. O'Shaugnessy, S.S. Bushman, and P.E.
Rosendall, MESSENGER maneuver performance during the low-altitude hover
campaign, Astrodynamics Specialist Conference, American Astronautical
Society, paper AAS 15-652, 19 pp., Vail, CO, August 9-13, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KLIMCZAKETAL2012"
REFERENCE_DESC                 = "
Klimczak, C., T.R. Watters, C.M. Ernst, A.M. Freed, P.K. Byrne, S.C. Solomon,
D.M. Blair, and J.W. Head, Deformation associated with ghost craters and
basins in volcanic smooth plains on Mercury: Strain analysis and implications
for plains evolution, Journal of Geophysical Research, 117, E00L03,
doi:10.1029/2012JE004100, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KLIMCZAKETAL2013"
REFERENCE_DESC                 = "
Klimczak, C., C.M. Ernst, P.K. Byrne, S.C. Solomon, T.R. Watters, S.L.
Murchie, F. Preusker, and J.A. Balcerski, Insights into the subsurface
structure of Caloris basin, Mercury, from assessments of mechanical layering
and changes in long-wavelength topography, Journal of Geophysical Research:
Planets, 118, 2030-2044, doi:10.1002/jgr3.20157, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KLIMCZAKETAL2015"
REFERENCE_DESC                 = "
Klimczak, C., P.K. Byrne, and S.C. Solomon, A rock-mechanical assessment of
Mercury's global tectonic fabric, Earth and Planetary Science Letters, 416,
82-90, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KOCHTEETAL2010"
REFERENCE_DESC                 = "
Kochte, M.C., N.R. Izenberg, R.J. Steele, T.H. Choo, M.R. Lankton, and W.E.
McClintock, Prometheus's challenge: Scheduling MASCS observations using
SciBox for orbital operations at Mercury, SpaceOps 2010 Conference, American
Institute of Aeronautics and Astronautics, paper AIAA 2010-2134, 12 pp.,
Huntsville, AL, April 25-30, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KOCHTEETAL2012"
REFERENCE_DESC                 = "
Kochte, M.C., E.J. Finnegan, N.R. Izenberg, R.J. Vervack, Jr., B.P.
Lamprecht, M R. Lankton, and W.E. McClintock, Hot times at Mercury: Mission
operations for the Mercury Atmospheric and Surface Composition Spectrometer
on MESSENGER, Space 2012 Conference and Exposition, American Institute of
Aeronautics and Astronautics, paper AIAA-2012-5228, 11 pp., Pasadena, CA,
September 11-13, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KOCHTEETAL2014"
REFERENCE_DESC                 = "
Kochte, M.C., D.M. Sepan, and R.G. Shelton, Getting the message to MESSENGER:
Overview of the weekly planning and sequencing of MESSENGER orbital
activities, SpaceOps 2014, 13th International Conference on Space Operations,
American Institute of Aeronautics and Astronautics, paper AIAA 2014-1915, 10
pp., Pasadena, CA, May 5-9, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KOEHNETAL2002"
REFERENCE_DESC                 = "
Koehn, P.L., T.H. Zurbuchen, G. Gloeckler, R.A. Lundgren, and L.A.
Fisk, Measuring the plasma environment at Mercury: The Fast Imaging
Plasma Spectrometer, Meteoritics and Planetary Science, 37, 1173-1189,
2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KORTHETAL2011"
REFERENCE_DESC                 = "
Korth, H., B.J. Anderson, T.H. Zurbuchen, J.A. Slavin, S. Perri, S.A.
Boardsen, D.N. Baker, S.C. Solomon, R.L. McNutt, Jr., The interplanetary
magnetic field environment at Mercury's orbit, Planetary and Space Science,
59, 2075-2085, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KORTHETAL2011B"
REFERENCE_DESC                 = "
Korth, H., B.J. Anderson, J.M. Raines, J.A. Slavin, T.H. Zurbuchen, C.L.
Johnson, M.E. Purucker, R.M. Winslow, S.C. Solomon, and R.L. McNutt, Jr.,
Plasma pressure in Mercury's equatorial magnetosphere derived from MESSENGER
Magnetometer observations, Geophysical Research Letters, 38, L22201,
doi:10.1029/2011GL049451, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KORTHETAL2012"
REFERENCE_DESC                 = "
Korth, H., B.J. Anderson, C.L. Johnson, R.M. Winslow, J.A. Slavin, M.E.
Purucker, S.C. Solomon, and R.L. McNutt, Jr., Characteristics of the plasma
distribution in Mercury's equatorial magnetosphere derived from MESSENGER
Magnetometer observations, Journal of Geophysical Research, 117, A00M07,
doi:10.1029/2012JA018952, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KORTHETAL2014"
REFERENCE_DESC                 = "
Korth, H., B.J. Anderson, D.J. Gershman, J.M. Raines, J.A. Slavin, T.H.
Zurbuchen, S.C. Solomon, and R.L. McNutt, Jr., Plasma distribution in
Mercury's magnetosphere derived from MESSENGER Magnetometer and Fast
Imaging Plasma Spectrometer observations, Journal of Geophysical Research:
Space Physics, 119, 2917-2932, doi:10.1002/2013JA019567, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KORTHETAL2015"
REFERENCE_DESC                 = "
Korth, H., N.A. Tsyganenko, C.L. Johnson, L.C. Philpott, B.J. Anderson, M.M.
Al Asad, S.C. Solomon, and R.L. McNutt, Jr., Modular model for Mercury's
magnetospheric magnetic field confined within the average observed
magnetopause, Journal of Geophysical Research: Space Physics, 120, 4503-4518,
doi:10.1002/1015JA021022, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KREBSETAL2005"
REFERENCE_DESC                 = "
Krebs, D.J., A.M. Novo-Gradac, S.X. Li, S.J. Lindauer, R.S. Afzal,
and A.W. Yu, Compact, passively Q-switched Nd:YAG laser for the
MESSENGER mission to Mercury, Applied Optics, 44, 1715-1718, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KRUPIARZ2003"
REFERENCE_DESC                 = "
Krupiarz, C., CCSDS File Delivery Protocol (CFDP)-Part 2: Implementers
Guide, Committee for Space Data Systems, CCSDS 720.2-G-1.1, Green Book,
Issue 1.1, 6 pp., April 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KRUPIARZETAL2002"
REFERENCE_DESC                 = "
Krupiarz, C.J., S.C. Burleigh, C.M. Frangos, B.K. Heggestad, D.B.
Holland, K.M. Lyons, and W.C. Stratton, The use of the CCSDS file
delivery protocol on MESSENGER, Space Operations 2002 Conference, World
Space Congress, American Institute of Aeronautics and Astronautics,
Paper T5-35, 8 pp., Houston, TX, October 9-12, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KRUPIARZETAL2003"
REFERENCE_DESC                 = "
Krupiarz, C.J., D.A. Artis, A.B. Calloway, C.M. Frangos, B.K.
Heggestad, D.B. Holland, and W.C. Stratton, File-based data processing
on MESSENGER, Proceedings of the 5th International Academy of
Astronautics (IAA) International Conference on Low-Cost Planetary
Missions, Special Publication SP-542, edited by R.A. Harris, pp.
435-442, European Space Agency, Noordwijk, The Netherlands, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KRUPIARZETAL2004"
REFERENCE_DESC                 = "
Krupiarz, C., B.K. Heggestad, and R.D. Carper, Flying CFDP on
MESSENGER, International Telemetering Conference 2004, Paper 04-14-02, 8
pp., San Diego, CA, October 18-21, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "KURUCZETAL1997"
REFERENCE_DESC                 = "
Kurucz, Robert L., Harvard-Smithsonian Center for Astrophysics,60 Garden
St, Cambridge, MA 02138, USA. The SOLAR Irradiance by Computation.
Available from the author on request, or at KURUCZ.HARVARD.EDU under
IRRADIANCE in the SUN directory. November, 25, 1997"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LAWRENCEETAL2004"
REFERENCE_DESC                 = "
Lawrence, D.J., S. Maurice, and W.C. Feldman, Gamma-ray measurements from 
Lunar Prospector: Time series data reduction for the Gamma Ray Spectrometer,
J. Geophys. Res., Vol. 109, E07S05, doi:10.1029/2003JE002206, 2004."
END_OBJECT                      = REFERENCE
   
OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LAWRENCEETAL2010"
REFERENCE_DESC                 = "
Lawrence, D.J., W.C. Feldman, J.O. Goldsten, T.J. McCoy, D.T. Blewett, W.V.
Boynton, L.G. Evans, L.R. Nittler, E.A. Rhodes, and S.C. Solomon,
Identification and measurement of neutron-absorbing elements on Mercury's
surface, Icarus, 209, 195-209, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LAWRENCEETAL2011"
REFERENCE_DESC                 = "
Lawrence, D.J., J.K. Harmon, W.C. Feldman, J. O Goldsten, D.A. Paige,, P.N.
Peplowski, E.A. Rhodes, C. M Selby, and S.C. Solomon, Predictions of
MESSENGER Neutron Spectrometer measurements for Mercury's north polar region,
Planetary and Space Science, 59, 1665-1669, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LAWRENCEETAL2013"
REFERENCE_DESC                 = "
Lawrence, D.J., W.C. Feldman, J.O. Goldsten, S. Maurice, P.N. Peplowski, B.J.
Anderson, D. Bazell, R.L. McNutt, Jr., L.R. Nittler, T.H. Prettyman, D.J.
Rodgers, S.C. Solomon, and S.Z. Weider, Evidence for water ice near Mercury's
north pole from MESSENGER Neutron Spectrometer measurements, Science, 339,
292-296, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LAWRENCEETAL2014"
REFERENCE_DESC                 = "
Lawrence, D.J., W.C. Feldman, J.O. Goldsten, P.N. Peplowski, D.J. Rodgers,
and S.C. Solomon, Detection and characterization of 0.5-8 MeV neutrons near
Mercury: Evidence for a solar origin, Journal of Geophysical Research: Space
Physics, 119, 5150-5171, doi:10.1002/2013JA019037, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LAWRENCEETAL2015"
REFERENCE_DESC                 = "
Lawrence, D.J., W.C. Feldman, P.N. Peplowski, and S.C. Solomon, The 4 June
2011 neutron event at Mercury: A defense of the solar origin hypothesis,
Journal of Geophysical Research: Space Physics, 120, 5284-5289,
doi:10.1002/2015JA021069, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LAWRENCEETAL2015B"
REFERENCE_DESC                 = "
Lawrence, D.J., B.J. Anderson, D.N. Baker, W.C. Feldman, G.C. Ho, H. Korth,
R.L. McNutt, Jr., P.N. Peplowski, S.C. Solomon, R.D. Starr, J.D. Vandegriff,
and R.M. Winslow, Comprehensive survey of energetic electron events in
Mercury's magnetosphere with data from the MESSENGER Gamma-Ray and Neutron
Spectrometer, Journal of Geophysical Research: Space Physics, 120, 2851-2876,
2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LEARYETAL2006"
REFERENCE_DESC                 = "
Leary, J.C., R.W. Farquhar, M.E. Holdridge, R.E. Gold, D.G. Grant, 
C.C. Hall, J.V. McAdams, R.L. McNutt, Jr., and S.C. Solomon, MESSENGER 
operations and critical events, 25th International Symposium on Space 
Technology and Science, Kanazawa, Japan, 6 pp., June 4-11, 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LEARYETAL2007"
REFERENCE_DESC                 = "
Leary, J.C., R.F. Conde, G. Dakermanji, C.S. Engelbrecht, C.J. Ercol,
K. Fielhauer, D.G. Grant, T.J. Hartka, T.A. Hill, S.E. Jaskulek,
M.A. Mirantes, L.E. Mosher, M.V. Paul, C.E. Person, D.F. Persons,
E.H. Rodberg, D.K. Srinivasan,  R.M. Vaughan, and S.R. Wiley, The MESSENGER
spacecraft, Space Science Reviews, 131, 187-217, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LEETAL2002"
REFERENCE_DESC                 = "
Le, B.Q., S.X. Ling, L.R. Kennedy, G. Dakermanji, and S.C. Laughery,
The MESSENGER power distribution unit packaging design, 21st Digital
Avionics Systems Conference, Paper 9B3, 8 pp., Irvine, CA, October
27-31, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "LINGETAL2002"
REFERENCE_DESC                 = "
Ling, S.X., R.F. Conde, and B.Q. Le, A light weight integrated
electronics module (IEM) packaging design for the MESSENGER spacecraft,
21st Digital Avionics Systems Conference, Paper 9B4, 9 pp., Irvine, CA,
October 27-31, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MACKEYETAL2012"
REFERENCE_DESC                 = "
Mackey, D.P., and A.B. Calloway, Planning and operations for superior solar
conjunctions during the MESSENGER mission, Institute of Electrical and
Electronic Engineers Aerospace Conference, paper 6.0102, 6 pp., Big Sky, MT,
March 3-10, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MALOUF&WALLIS2005"
REFERENCE_DESC                 = "
Malouf, P.M., and R.E. Wallis, The medium-gain antenna of the
MESSENGER spacecraft, Microwave Journal, 48 (10), 110-114, October
2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MARGOT2009"
REFERENCE_DESC                 = "
Margot, J.L., A Mercury orientation model including non-zero obliquity and
librations, Celestial Mechanics and Dynamical Astronomy, 105, 329-336, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MARGOTETAL2012"
REFERENCE_DESC                 = "
Margot, J.-L., S.J. Peale, S.C. Solomon, S.A. Hauck, II, F.D. Ghigo, R.F.
Jurgens, S. Padovan, and D.B. Campbell, Mercury's moment of inertia from spin
and gravity data, Journal of Geophysical Research, 117, E00L09,
doi:10.1029/2012JE004161, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MARGOTETAL2012"
REFERENCE_DESC                 = "
Margot, J.-L., S.J. Peale, S.C. Solomon, S.A. Hauck, II, F.D. Ghigo, R.F.
Jurgens, S. Padovan, and D.B. Campbell, Mercury's moment of inertia from spin
and gravity data, Journal of Geophysical Research, 117, E00L09,
doi:10.1029/2012JE004161, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MAURICEETAL2004"
REFERENCE_DESC                 = "
Maurice, S., D.J. Lawrence, W.C. Feldman, R.C. Elphic, and O. Gasnault, 
Reduction of neutron data from Lunar Prospector, J. Geophys. Res., Vol. 109, 
E07S04, doi:10.1029/2003JE002208, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MAZARICOETAL2014"
REFERENCE_DESC                 = "
Mazarico, E., A. Genova, S. Goossens, F.G. Lemoine, G.A. Neumann,
M.T. Zuber, D.E. Smith, and S.C. Solomon, The gravity field, orientation,
and ephemeris of Mercury from MESSENGER observations after three years in
orbit, J. Geophys. Res. Planets, 119, doi:10.1002/2014JE004675, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MAZARICOETAL2016"
REFERENCE_DESC                 = "
Mazarico, E., A. Genova, S. Goossens, F.G. Lemoine, D.E. Smith, M.T.
Zuber, G.A. Neumann, and S.C. Solomon, The gravity field of Mercury
after MESSENGER, Lunar and Planetary Science Conference, no. 47, pp.
2022, Lunar and Planetary Institute, Universities Space Research
Association, Houston, TX., March 2016."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MAZETSETAL2008"
REFERENCE_DESC                 = "
Mazets, E.P., R.L. Aptekar, T.L. Cline, D.D. Frederiks, J.O. Goldsten, S.V.
Golenetskii, K. Hurley, A. von Kienlin, and V.D. Pal'shin, A giant flare from
a soft gamma repeater in the Andromeda galaxy, Astrophysical Journal, 680,
545-549, June 10, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMS1999"
REFERENCE_DESC                 = "
McAdams, J.V., A resilient mission design for the MESSENGER 2004
Mercury orbiter, 50th International Astronautical Congress, Acta
Astronautica, Paper AIAA-99- IAA.11.2.06, 13 pp., Amsterdam, The
Netherlands, October 4-8, 1999."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMS2003"
REFERENCE_DESC                 = "
McAdams, J.V., MESSENGER Mercury orbit trajectory design, Spaceflight
Mechanics 2003, Advances in the Astronautical Sciences, 114, part III,
1549-1567, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMS2004"
REFERENCE_DESC                 = "
McAdams, J.V., MESSENGER mission overview and trajectory design,
Astrodynamics 2003, Advances in the Astronautical Sciences, 116, part
III, 643-662, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL1998"
REFERENCE_DESC                 = "
McAdams, J.V., J.L. Horsewood, and C.L. Yen, Discovery-class Mercury
orbiter trajectory design for the 2005 launch opportunity, Astrodynamics
Specialist Conference, American Institute of Aeronautics and
Astronautics, Paper AIAA-98-4283, 7 pp., Boston, MA, August 10-12,
1998."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2002"
REFERENCE_DESC                 = "
McAdams, J.V., R.F. Farquhar, and C.L. Yen, Improvements in
trajectory optimization for MESSENGER: The first Mercury orbiter
mission, Astrodynamics 2001, Advances in the Astronautical Sciences,
109, Part III, 2189-2203, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2005A"
REFERENCE_DESC                 = "
McAdams, J.V., L.L. Burge, and J. Gill, An internet-based trajectory
database for the MESSENGER mission to Mercury, 15th American
Astronautical Society (AAS)/American Institute of Aeronautics and
Astronautics (AIAA) Space Flight Mechanics Conference, Paper AAS 05-
175, 13 pp., Copper Mountain, CO, January 23-27, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2005B"
REFERENCE_DESC                 = "
McAdams, J.V., D.W. Dunham, R.W. Farquhar, A.H. Taylor, and B.G.
Williams, Trajectory design and maneuver strategy for the MESSENGER
mission to Mercury, 15th American Astronautical Society (AAS)/American
Institute of Aeronautics and Astronautics (AIAA) Space Flight Mechanics
Conference, Paper AAS 05-173, 21 pp., Copper Mountain, CO, January
23-27, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2006A"
REFERENCE_DESC                 = "
McAdams, J.V., D.W. Dunham, R.W. Farquhar, A.H. Taylor, and B.G.
Williams, Trajectory design and maneuver strategy for the MESSENGER
mission to Mercury, American Institute of Aeronautics and Astronautics
(AIAA) Journal of Spacecraft and Rockets, 43 (5), 1054-1064, 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2006B"
REFERENCE_DESC                 = "
McAdams, J.V., R.W. Farquhar, A.H. Taylor, and B.G. Williams,
MESSENGER mission design and navigation, Space Science Reviews, 131,
219-246, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2008"
REFERENCE_DESC                 = "
McAdams, J.V., D.J. O'Shaughnessy, A.H. Taylor, K.H. Williams, and B.R. Page,
Maneuver design strategy enables precise targeting of the first MESSENGER
Mercury flyby, 2008 Astrodynamics Specialist Conference, American
Astronautical Society/American Institute of Aeronautics and Astronautics,
paper AIAA-2008-7367, 15 pp., Honolulu, HI, August 18-21, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2011"
REFERENCE_DESC                 = "
McAdams, J.V., D.P. Moessner, K.E. Williams, A.H. Taylor, B.R. Page, and D.J.
O'Shaughnessy, MESSENGER - Six primary maneuvers, six planetary flybys, and
6.6 years to Mercury orbit, Astrodynamics Specialist Conference, American
Astronautical Society/ American Institute of Aeronautics and Astronautics,
paper AAS 11-546, 19 pp., Girdwood, AK, July 31 - August 4, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2011B"
REFERENCE_DESC                 = "
McAdams, J.V., D.P. Moessner, and D.W. Dunham, MESSENGER's Mercury orbit
insertion maneuver: Design chronology, contingency preparedness, and final
results, 9th Low-Cost Planetary Missions Conference, International Academy of
Astronautics, 8 pp., Laurel, MD, June 21-23, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2012"
REFERENCE_DESC                 = "
McAdams, J.V., S.C. Solomon, P.D. Bedini, E.J. Finnegan, R.L. McNutt, Jr.,
A.B. Calloway, D.P. Moessner, M.W. Wilson, D.T. Gallagher, C.J. Ercol, and
S.H. Flanigan, MESSENGER at Mercury: From orbit insertion to first extended
mission, 63rd International Astronautical Congress, paper IAC-12-C1.5.6, 11
pp., Naples, Italy, October 1-5, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2014"
REFERENCE_DESC                 = "
McAdams, J.V., C.G. Bryan, D.P. Moessner, B.R. Page, D.R. Stanbridge, and
K.E. Williams, Orbit design and navigation through the end of MESSENGER's
extended mission at Mercury, 24th Space Flight Mechanics Meeting, American
Astronautical Society/American Institute of Aeronautics and Astronautics,
paper AAS 14-369, 20 pp., Santa Fe, NM, January 26-30, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCADAMSETAL2015"
REFERENCE_DESC                 = "
McAdams, J.V., C.G. Bryan, S.S. Bushman, A.B. Calloway, E. Carranza, S.H.
Flanigan, M.N. Kirk, H. Korth, D.P. Moessner, D.J. O'Shaughnessy, and K.E.
Williams, Engineering MESSENGER's grand finale at Mercury - The low-altitude
hover campaign, Astrodynamics Specialist Conference, American Astronautical
Society, paper AAS 15-634, 20 pp., Vail, CO, August 9-13, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCCLINTOCK&LANK2007"
REFERENCE_DESC                 = "
McClintock, W.E., and M.R. Lankton, The Mercury Atmospheric and
Surface Composition Spectrometer for the MESSENGER mission, Space
Science Reviews, 131, 481-521, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCCLINTOCKETAL2008"
REFERENCE_DESC                 = "
McClintock, W.E., N.R. Izenberg, G.M. Holsclaw, D.T. Blewett, D.L. Domingue,
J.W. Head, III, J. Helbert, T.J. McCoy, S.L. Murchie, M.S. Robinson, S.C.
Solomon, A.L. Sprague, and F. Vilas, Spectroscopic observations of Mercury's
surface reflectance during MESSENGER's first Mercury flyby, Science, 321,
62-65, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCCLINTOCKETAL2008B"
REFERENCE_DESC                 = "
McClintock, W.E., E.T. Bradley, R.J. Vervack, Jr., R.M. Killen, A.L. Sprague,
N.R. Izenberg, and S.C. Solomon, Mercury's exosphere: Observations during
MESSENGER's first Mercury flyby, Science, 321, 92-94, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCCLINTOCKETAL2009"
REFERENCE_DESC                 = "
McClintock, W.E., R.J. Vervack, Jr., E.T. Bradley, R.M. Killen, N. Mouawad,
A.L. Sprague, M.H. Burger, S.C. Solomon, and N.R. Izenberg, MESSENGER
observations of Mercury's exosphere: Detection of magnesium and distribution
of constituents, Science, 324, 610-613, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCNUTTETAL2004"
REFERENCE_DESC                 = "
McNutt, R.L., Jr., S.C. Solomon, R. Grard, M. Novara, and T. Mukai, An
international program for Mercury exploration: Synergy of MESSENGER and
BepiColombo, Advances in Space Research, 33, 2126-2132, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCNUTTETAL2005"
REFERENCE_DESC                 = "
McNutt, R.L., Jr., R.E. Gold, S.C. Solomon, J.C. Leary, and D.G.
Grant, MESSENGER: A Discovery mission to Mercury, in Proceedings of the
6th International Academy of Astronautics International Conference on
Low-Cost Planetary Missions, 6th ICLCPM Secretary Office, Sagamihara,
Japan, pp. 71-77, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCNUTTETAL2006"
REFERENCE_DESC                 = "
McNutt, R.L., Jr., S.C. Solomon, R.E. Gold, J.C. Leary, and the
MESSENGER team, The MESSENGER mission to Mercury: Development history
and early mission status, Advances in Space Research, 38, 564-571, 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCNUTTETAL2008"
REFERENCE_DESC                 = "
McNutt, R.L., Jr., and S.C. Solomon, MESSENGER arrives at Mercury, The
Planetary Report, 28, pp. 12-17, September/October 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCNUTTETAL2008B"
REFERENCE_DESC                 = "
McNutt, R.L., Jr., S.C. Solomon, D.G. Grant, E.J. Finnegan, P.D. Bedini, and
the MESSENGER Team, The MESSENGER mission to Mercury: Status after the Venus
flybys, Acta Astronautica, 63, 68-73, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCNUTTETAL2009"
REFERENCE_DESC                 = "
McNutt, R.L., Jr., Solomon, S.C., P.D. Bedini, E.J. Finnegan, D.G. Grant, and
the MESSENGER Team, The MESSENGER mission: Results from the first two Mercury
flybys, 60th International Astronautical Congress, paper IAC-09-A3.6.2, 9
pp., Daejeon, Republic of Korea, October 12-16, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCNUTTETAL2010"
REFERENCE_DESC                 = "
McNutt, R.L., Jr., S.C. Solomon, P.D. Bedini, E.J. Finnegan, D.G. Grant, and
the MESSENGER Team, The MESSENGER mission: Results from the first two Mercury
flybys, Acta Astronautica, 67, 681-687, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCNUTTETAL2011"
REFERENCE_DESC                 = "
McNutt, R.L., Jr., S.C. Solomon, P.D. Bedini, B.J. Anderson, D.T. Blewett,
L.G. Evans, R.E. Gold, S.M. Krimigis, S.L. Murchie, L.R. Nittler, L.M.
Prockter, R.J. Phillips, J.A. Slavin, M.T. Zuber, E.J. Finnegan, D.G. Grant,
and the MESSENGER Team, MESSENGER at Mercury: Early orbital operations, 9th
Low-Cost Planetary Missions Conference, International Academy of
Astronautics, 8 pp., Laurel, MD, June 21-23, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCNUTTETAL2012"
REFERENCE_DESC                 = "
McNutt, R.L., Jr., S.C. Solomon, P.D. Bedini, H.L. Winters, D.G. Grant, and
the MESSENGER Team, The MESSENGER mission continues: Transition to the
extended mission, 63rd International Astronautical Congress, paper
IAC-12-A3.5.1, 15 pp., Naples, Italy, October 1-5, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MCNUTTETAL2014"
REFERENCE_DESC                 = "
McNutt, R.L., Jr., S.C. Solomon, P.D. Bedini, B.J. Anderson, D.T. Blewett,
L.G. Evans, R.E. Gold, S.M. Krimigis, S.L. Murchie, L.R. Nittler, R.J.
Phillips, L.M. Prockter, J.A. Slavin, M.T. Zuber, E.J. Finnegan, D.G. Grant,
and the MESSENGER Team, MESSENGER at Mercury: Early orbital operations, Acta
Astronautica, 93, 509-515, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MICHELETAL2013"
REFERENCE_DESC                 = "
Michel, N.C., S.A. Hauck, II, S.C. Solomon, R.J. Phillips, J.H. Roberts, and
M.T. Zuber, Thermal evolution of Mercury as constrained by MESSENGER
observations, Journal of Geophysical Research: Planets, 118, 1033-1044,
10.1002/jgre.20049, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MILKOVICHETAL2002"
REFERENCE_DESC                 = "
Milkovich, S.M., J.W. Head, and L. Wilson, Identification of Mercurian
volcanism: Resolution effects and implications for MESSENGER,
Meteoritics and Planetary Science, 37, 1209-1222, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MILLER2005"
REFERENCE_DESC                 = "
Miller, J.K., Constrained parameter optimization by the method of
explicit functions: Application to the MESSENGER mission to Mercury,
15th American Astronautical Society (AAS)/American Institute of
Aeronautics and Astronautics (AIAA) Space Flight Mechanics Conference,
Paper AAS 05-174, 13 pp., Copper Mountain, CO, January 23-27, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MOESSNER&MCADAMS2011"
REFERENCE_DESC                 = "
Moessner, D.P., and J.V. McAdams, The MESSENGER spacecraft's orbit-phase
trajectory, Astrodynamics Specialist Conference, American Astronautical
Society/ American Institute of Aeronautics and Astronautics, paper AAS
11-547, 20 pp., Girdwood, AK, July 31 - August 4, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MOESSNER&MCADAMS2014"
REFERENCE_DESC                 = "
Moessner, D.P., and J.V. McAdams, The final two years: MESSENGER's
trajectory from the third year in orbit through Mercury impact, 24th
International Symposium on Space Flight Dynamics, http://issfd.org/, 18 pp.,
Laurel, MD, May 5-9, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MOESSNER&MCADAMS2015"
REFERENCE_DESC                 = "
Moessner, D.P., and J.V. McAdams, Design, implementation, and outcome of
MESSENGER's trajectory from launch to impact, Astrodynamics Specialist
Conference, American Astronautical Society, paper AAS 15-608, 20 pp., Vail,
CO, August 9-13, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MOHITETAL2009"
REFERENCE_DESC                 = "
Mohit, P.S., C.L. Johnson, O. Barnouin-Jha, M.T. Zuber, and S.C. Solomon,
Shallow basins on Mercury: Evidence of relaxation?, Earth and Planetary
Science Letters, 285, 355-363, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MOORE2002"
REFERENCE_DESC                 = "
Moore, R.C., Safing and fault protection for a mission to Mercury, 21st
Digital Avionics Systems Conference, Paper 9A4, 8 pp., Irvine, CA,
October 27-31, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MOUAWADETAL2011"
REFERENCE_DESC                 = "
Mouawad, N., M.H. Burger, R.M. Killen, A.E. Potter,, W.E. McClintock, R.J.
Vervack, Jr., E.T. Bradley, M. Benna, and S. Naidu, Constraints on Mercury's
Na exosphere: Combined MESSENGER and ground-based data, Icarus, 211, 21-36,
2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MOYER2000"
REFERENCE_DESC                 = "
MOYER, T., Formulation for Observed and Computed Values of Deep Space
Network Data Types for Navigation, JPL Publication 00-7, Jet Propulsion
Laboratory, Pasadena, 2000"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MURCHIEETAL2008"
REFERENCE_DESC                 = "
Murchie, S.L., T.R. Watters, M.S. Robinson, J.W. Head, R.G. Strom, C.R.
Chapman, S.C. Solomon, W.E. McClintock, L.M. Prockter, D.L. Domingue, and
D.T. Blewett, Geology of the Caloris basin, Mercury: A view from MESSENGER,
Science, 321, 73-76, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MURCHIEETAL2011"
REFERENCE_DESC                 = "
Murchie, S.L., R.J. Vervack, Jr., and B.J. Anderson, Journey to the innermost
planet, Scientific American, 304, 34-39, March 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "MURCHIEETAL2015"
REFERENCE_DESC                 = "
Murchie, S.L., R.L. Klima, B.W. Denevi, C.M. Ernst, M.R. Keller, D.L.
Domingue, D.T. Blewett, N.L. Chabot, C.D. Hash, E. Malaret, N.R. Izenberg, F.
Vilas, L.R. Nittler, J.J. Gillis-Davis, J.W. Head, and S.C. Solomon, Orbital
multispectral mapping of Mercury with the MESSENGER Mercury Dual Imaging
System: Evidence for the origins of plains units and low-reflectance
material, Icarus, 254, 287-305, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "NEUMANNETAL2013"
REFERENCE_DESC                 = "
Neumann, G.A., J.F. Cavanaugh, X. Sun, E. Mazarico, D.E. Smith, M.T. Zuber,
D. Mao, D.A. Paige, S.C. Solomon, C.M. Ernst, and O.S. Barnouin, Bright and
dark polar deposits on Mercury: Evidence for surface volatiles, Science, 339,
296-300, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "NEUMANNETAL2013B"
REFERENCE_DESC                 = "
Neumann, G.A, J.F. Cavanaugh, X. Sun, E.M. Mazarico, D.E. Smith, M.T. Zuber,
D. Mao, D.A. Paige, S.C. Solomon, C.M. Ernst, O.S., Barnouin, Bright and
Dark Polar Deposits on Mercury: Evidence for Surface Volatiles,
Science, doi:10.1126/science.1229764, Published online 29 November 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "NHANETAL2002"
REFERENCE_DESC                 = "
Nhan, E., S. Cheng, M.J. Jose, S.O. Fortney, and J.E. Penn, Recent
test results of a flight X-band solid-state power amplifier utilizing
GaAs MESFET, HFET, and PHEMT technologies, Proceedings of the 2002 GaAs
Reliability Workshop, 37-44, Monterey, CA, October 20, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "NITTLERETAL2011"
REFERENCE_DESC                 = "
Nittler, L.R., R.D. Starr, S.Z. Weider, T.J. McCoy, W.V. Boynton, D.S. Ebel,
C.M. Ernst, L.G. Evans, J.O. Goldsten, D.K. Hamara, D.J. Lawrence, R.L.
McNutt, Jr., C.E. Schlemm II, S.C. Solomon, and A.L. Sprague, The major-
element composition of Mercury's surface from MESSENGER X-ray spectrometry,
Science, 333, 1847-1850, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OSHAUGHNESSY&PIT2007"
REFERENCE_DESC                 = "
O'Shaughnessy, D., and M.E. Pittelkau, Attitude sensor and gyro calibration
for MESSENGER, 20th International Symposium on Space Flight Dynamics, paper
12-1,15 pp. Annapolis, MD, September 24-28, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OSHAUGHNESSY&V2003"
REFERENCE_DESC                 = "
O'Shaughnessy, D.J., and R.M. Vaughan, MESSENGER spacecraft pointing 
options, Proceedings of the 13th American Astronautical Society (AAS) /
American Institute of Aeronautics and Astronautics (AIAA) Space Flight 
Mechanics Meeting, Paper AAS-03-149, 20 pp., Ponce, Puerto Rico, February 
9-13, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OSHAUGHNESSYETAL2006"
REFERENCE_DESC                 = "
O'Shaughnessy, D.J., D.R. Haley, H.S. Shapiro, and R.M. Vaughan, MESSENGER
IMU interface timing issues and in-flight calibration results, 29th Annual
Guidance and Control Conference, American Astronautical Society, paper AAS
06-086, 22 pp., Breckenridge, CO, February 4-8, 2006.  (Also published in
Guidance and Control 2006, Advances in the Astronautical Sciences, 125,
485-506, 2006.)"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OSHAUGHNESSYETAL2007"
REFERENCE_DESC                 = "
O'Shaughnessy, D.J., R.M. Vaughan, T.L. Chouinard, and D.E. Jackle, Impacts
of center of mass shifts on MESSENGER spacecraft operations, 20th
International Symposium on Space Flight Dynamics, paper 12-4, 15 pp.
Annapolis, MD, September 24-28, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OSHAUGHNESSETAL2009"
REFERENCE_DESC                 = "
O'Shaughnessy, D.J., J.V. McAdams, K.E. Williams, and B.R. Page, Fire sail:
MESSENGER's use of solar radiation pressure for accurate Mercury flybys, 32nd
Guidance and Control Conference, American Astronautical Society, paper AAS
09-014, 16 pp., Breckenridge, CO, January 31 - February 4, 2009.  (Also
published in Guidance and Control 2009, edited by E.J. Friedman and R.D.
Culp, Advances in the Astronautical Sciences, 133, 61-76, 2009.)"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OSHAUGHNESSETAL2011"
REFERENCE_DESC                 = "
O'Shaughnessy, D.J., J.V. McAdams, P.D. Bedini, A.B. Calloway, and K.E.
Williams, MESSENGER's use of solar sailing for cost and risk reduction, 9th
Low-Cost Planetary Missions Conference, International Academy of
Astronautics, 8 pp., Laurel, MD, June 21-23, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OSHAUGHNESSYETAL2014"
REFERENCE_DESC                 = "
O'Shaughnessy, D.J., J.V. McAdams, P.D. Bedini, A.B. Calloway, K.E. Williams,
and B.R. Page, MESSENGER's use of solar sailing for cost and risk reduction,
Acta Astronautica, 93, 483-489, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OBERSTETAL2010"
REFERENCE_DESC                 = "
Oberst, J., F. Preusker, R.J. Phillips, T.R. Watters, J.W. Head, M.T. Zuber,
and S.C. Solomon, The morphology of Mercury's Caloris basin as seen in
MESSENGER stereo topographic models, Icarus, 209, 230-238, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OBERSTETAL2011"
REFERENCE_DESC                 = "
Oberst, J., S. Elgner, F.S. Turner, M.E. Perry, R.W. Gaskell, M.T. Zuber,
M.S. Robinson, and S.C. Solomon, Radius and limb topography of Mercury
obtained from images acquired during the MESSENGER flybys, Planetary and
Space Science, 59, 1918-1924, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ORD&HIBBARD2010"
REFERENCE_DESC                 = "
Ord, K.J., and K.E. Hibbard, MESSENGER power and thermal systems operations,
SpaceOps 2010 Conference, American Institute of Aeronautics and Astronautics,
paper AIAA 2010-2137, 10 pp., Huntsville, AL, April 25-30, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OSHAUGHNESSY&V2003"
REFERENCE_DESC                 = "
O'Shaughnessy, D.J., and R.M. Vaughan, MESSENGER spacecraft pointing
options, Proceedings of the 13th American Astronautical Society (AAS)
/American Institute of Aeronautics and Astronautics (AIAA) Space Flight
Mechanics Meeting, Paper AAS-03-149, 20 pp., Ponce, Puerto Rico,
February 9-13, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OSHAUGHNESSYET2006"
REFERENCE_DESC                 = "
O'Shaughnessy, D.J., D.R. Haley, H.S. Shapiro, and R.M. Vaughan,
MESSENGER IMU interface timing issues and in-flight calibration results,
29th Annual American Astronautical Society (AAS) Guidance and Control
Conference, paper AAS 06-086, 22 pp., Breckenridge, CO, February 4-8,
2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "OSTRACHETAL2015"
REFERENCE_DESC                 = "
Ostrach, L.R., M.S. Robinson, J.L. Whitten, C.I. Fassett, R.G. Strom, J.W.
Head, and S.C. Solomon, Extent, age, and resurfacing history of the northern
smooth plains on Mercury from MESSENGER observations, Icarus, 250, 602-622,
2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PADOVANETAL2014"
REFERENCE_DESC                 = "
Padovan, S., J.-L. Margot, S.A. Hauck, II, W.B. Moore, and S.C. Solomon, The
tides of Mercury and possible implications for its interior structure,
Journal of Geophysical Research: Planets, 119, 850-866, 
doi:10.1002/2013JE004459, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PADOVANETAL2015"
REFERENCE_DESC                 = "
Padovan, S., M.A. Wieczorek, J.-L. Margot, N. Tosi, and S.C. Solomon,
Thickness of the crust of Mercury from geoid-to-topography ratios,
Geophysical Research Letters, 42, 1029-1038, doi:10.1002/2014GL052487, 
2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PAGEETAL2011"
REFERENCE_DESC                 = "
Page, B.R., K.E. Williams, A.H. Taylor, D.R. Stanbridge, C.G. Bryan, P.J.
Wolff, B.G. Williams, D.J. O'Shaughnessy, and S.H. Flanigan, Applying
experience from Mercury encounters to MESSENGER's Mercury orbital mission,
Astrodynamics Specialist Conference, American Astronautical Society/ American
Institute of Aeronautics and Astronautics, paper AAS 11-549, 20 pp.,
Girdwood, AK, July 31 - August 4, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PAGEETAL2013"
REFERENCE_DESC                 = "
Page, B.R., C.G. Bryan, K.G. Williams, A.H. Taylor, D.R. Stanbridge, P.J.
Wolff, and B.G. Williams, MESSENGER navigation operations during the Mercury
orbital mission phase, 23rd Space Flight Mechanics Meeting, American
Astronautical Society/American Institute of Aeronautics and Astronautics,
paper AAS-13-383, 20 pp., Kauai, HI, February 10-14, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PAIGEETAL2013"
REFERENCE_DESC                 = "
Paige, D.A., M.A. Siegler, J.K. Harmon, G.A. Neumann, E.M. Mazarico, D.E.
Smith, M.T. Zuber, E. Harju, M.L. Delitsky, and S.C. Solomon, Thermal
stability of volatiles in the north polar region of Mercury, Science, 339,
300-303, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PAGEETAL2014"
REFERENCE_DESC                 = "
Page, B.R., C.G. Byran, K.E. Williams, A.H. Taylor, and B.G. Williams, Tuning
the MESSENGER state estimation filter for controlled descent to Mercury
impact, Astrodynamics Specialist Conference, American Institute of
Aeronautics and Astronautics/American Astronautical Society, paper
AIAA-2014-4129, 16 pp., San Diego, CA, August 4-7, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PAULETAL2008"
REFERENCE_DESC                 = "
Paul, M.V., and E.J. Finnegan, MESSENGER - A highly constrained mission to
the innermost planet, Proceedings of the 2008 IEEE Aerospace Conference, IEEE
paper 2.0404, 10 pp., Big Sky, MT, March 1-8, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PAVLISETAL2007"
REFERENCE_DESC                 = "
Pavlis, D.E., S. Poulose, C. Deng, and J.J. McCarthy, GEODYN II System 
Documentation, SGT-Inc., Greenbelt, Maryland, Contractor report, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PAVLISETAL2012"
REFERENCE_DESC                 = "
Pavlis DE,McCarthy J, Wimert J. (2012) GEODYN II system description,
vol 1-5, contractor report, SGT Inc., Greenbelt, MD."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEALE2005"
REFERENCE_DESC                 = "
Peale, S.J., The free precession and libration of Mercury, Icarus, 178,
4- 18, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEALE2006"
REFERENCE_DESC                 = "
Peale, S.J., The proximity of Mercury's spin to Cassini state 1 from
adiabatic invariance, Icarus, 181, 338-347, 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEALEETAL2002"
REFERENCE_DESC                 = "
Peale, S.J., R.J. Phillips, S.C. Solomon, D.E. Smith, and M.T.
Zuber, A procedure for determining the nature of Mercury's core,
Meteoritics and Planetary Science, 37, 1269- 1283, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEALEETAL2007"
REFERENCE_DESC                 = "
Peale, S.J., M. Yseboodt, and J.-L. Margot, Long-period forcing of Mercury's
libration in longitude, Icarus, 187, 365-373, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEALEETAL2009"
REFERENCE_DESC                 = "
Peale, S.J., J.L. Margot, and M. Yseboodt, Resonant forcing of Mercury's
libration in longitude, Icarus, 199, 1-8, January 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEALEETAL2014"
REFERENCE_DESC                 = "
Peale, S.J., J.-L. Margot, S.A. Hauck, II, and S.C. Solomon, Effect of core-
mantle and tidal torques on Mercury's spin axis orientation, Icarus, 231,
206-220, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEALEETAL2016"
REFERENCE_DESC                 = "
Peale, S.J., J.-L. Margot, S.A. Hauck, II, and S.C. Solomon, Consequences of
an inner core on Mercury's spin configuration, Icarus, 264, 443-455, 2016."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEPLOWSKIETAL2011"
REFERENCE_DESC                 = "
Peplowski, P.N., L.G. Evans, S.A. Hauck, II, T.J. McCoy, W.V. Boynton, J.J.
Gillis-Davis, D.S. Ebel, J.O. Goldsten, D.K. Hamara, D.J. Lawrence, R.L.
McNutt, Jr., L.R. Nittler, S.C. Solomon, E.A. Rhodes, A.L. Sprague, R.D.
Starr, and K.R. Stockstill-Cahill, Radioactive elements on Mercury's surface
from MESSENGER: Implications for the planet's formation and evolution,
Science, 333, 1850-1852, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEPLOWSKIETAL2011B"
REFERENCE_DESC                 = "
Peplowski, P.N., D.T. Blewett, B.W. Denevi, L.G. Evans, D.J. Lawrence, L.N.
Nittler, E.A. Rhodes, C.M. Selby, and S.C. Solomon, Mapping iron abundances
on the surface of Mercury: Predicted spatial resolution of the MESSENGER
Gamma-Ray Spectrometer, Planetary and Space Science, 59, 1654-1658, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEPLOWSKIETAL2012"
REFERENCE_DESC                 = "
Peplowski, P.N., E.A. Rhodes, D.K. Hamara, D.J. Lawrence, L.G. Evans, L.R.
Nittler, and S.C. Solomon, Aluminum abundance on the surface of Mercury:
Application of a new background-reduction technique for the analysis of
gamma-ray spectroscopy data, Journal of Geophysical Research, 117, E00L10,
doi:10.1029/2012JE004181, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEPLOWSKIETAL2012B"
REFERENCE_DESC                 = "
Peplowski, P.N., D.J. Lawrence, E.A. Rhodes, A.L. Sprague, T.J. McCoy, B.W.
Denevi, L.G. Evans, J.W. Head, L.R. Nittler, S.C. Solomon, K.R. Stockstill-
Cahill, and S.Z. Weider, Variations in the abundances of potassium and
thorium on the surface of Mercury: Results from the MESSENGER Gamma-Ray
Spectrometer, Journal of Geophysical Research, 117, E00L04,
doi:10.1029/2012JE004141, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEPLOWSKIETAL2014"
REFERENCE_DESC                 = "
Peplowski, P.N., L.G. Evans, K.R. Stockstill-Cahill, D.J. Lawrence, J.O.
Goldsten, T.J. McCoy, L.R. Nittler, S.C. Solomon, A.L. Sprague, R.D. Starr,
and S.Z. Weider, Enhanced sodium abundance in Mercury's north polar region
revealed by the MESSENGER Gamma-Ray Spectrometer, Icarus, 228, 86-95, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEPLOWSKIETAL2015"
REFERENCE_DESC                 = "
Peplowski, P.N., D.J. Lawrence, W.C. Feldman, J.O. Goldsten, D. Bazell, L.G.
Evans, J.W. Head, L.R. Nittler, S.C. Solomon, and S.Z. Weider, Geochemical
terranes of Mercury's northern hemisphere as revealed by MESSENGER neutron
measurements, Icarus, 253, 346-363, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEPLOWSKIETAL2015B"
REFERENCE_DESC                 = "
Peplowski, P.N., D.J. Lawrence, L.G. Evans, R.L. Klima, D.T. Blewett, J.O.
Goldsten, S.L. Murchie, T.J. McCoy, L.R. Nittler, S.C. Solomon, R.D. Starr,
and S.Z. Weider, Constraints on the abundance of carbon in near-surface
materials on Mercury: Results from the MESSENGER Gamma-Ray Spectrometer,
Planetary and Space Science, 108, 98-107, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PEPLOWSKIETAL2016"
REFERENCE_DESC                 = "
Peplowski, P.N., R.L. Klima, D.J. Lawrence, C.M. Ernst, B.W. Denevi, E.A.
Frank, J.O. Goldsten, S.L. Murchie, L.R. Nittler, and S.C. Solomon, Remote
sensing evidence for an ancient carbon-bearing crust on Mercury, Nature
Geoscience, 9, 273-276, 2016."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PERRYETAL2011"
REFERENCE_DESC                 = "
Perry, M.E., D.S. Kahan, O.S. Barnouin, C.M. Ernst,, S.C. Solomon, M.T.
Zuber, D.E. Smith, R.J. Phillips, D.K. Srinivasan, J. Oberst, and S.W. Asmar,
Measurement of the radius of Mercury by radio occultation during the
MESSENGER flybys, Planetary and Space Science, 59, 1925-1931, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PERRYETAL2015"
REFERENCE_DESC                 = "
Perry, M.E., G.A. Neumann, R.J. Phillips, O.S. Barnouin, C.M. Ernst,
D.S. Kahan, S.C. Solomon, M.T. Zuber, D.E. Smith, S.A. Hauck II, S.J. Peale,
J. Margot, E. Mazarico, C.L. Johnson, R.W. Gaskell, J.H. Roberts,
R.L. McNutt, Jr., J. Oberst, The low-degree shape of Mercury, Geophysical
Research Letters, 42, doi:10.1002/2015GL065101."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PERSONSETAL2000"
REFERENCE_DESC                 = "
Persons, D.F., L.E. Mosher, and T.J. Hartka, The NEAR Shoemaker and
MESSENGER spacecraft: Two approaches to structure and propulsion design,
41st Structures, Structural Dynamics and Materials Conference, American
Institute of Aeronautics and Astronautics, Paper AIAA-00-1406, 10 pp.,
Atlanta, GA, April 3-6, 2000."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PHILPOTTETAL2014"
REFERENCE_DESC                 = "
Philpott, L.C., C.L. Johnson, R.M. Winslow, B.J. Anderson, H. Korth, M.E.
Purucker, and S.C. Solomon, Constraints on the secular variation of
Mercury's magnetic field from the combined analysis of MESSENGER and
Mariner 10 data, Geophysical Research Letters, 41, 6627-6634,
doi:10.1002/2014GL061401, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PITTELKAU&OSHAU2009"
REFERENCE_DESC                 = "
Pittelkau, M.E., and D.J. O'Shaughnessy, Gyro misalignment decomposition
applied to MESSENGER calibration, 19th Space Flight Mechanics Meeting,
American Astronautical Society/American Institute of Aeronautics and
Astronautics, paper AAS 09-203, 13 pp., Savannah, GA, February 8-12, 2009.
(Also published in Spaceflight Mechanics 2009, edited by A.M. Segerman, P.C.
Lai, M.P. Wilkins, and M.E. Pittelkau, Advances in the Astronautical
Sciences, 134, 1527-1539, 2009.)"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PREUSKERETAL2011"
REFERENCE_DESC                 = "
Preusker, F., J. Oberst, J.W. Head, T.R. Watters, M.S. Robinson, M.T. Zuber,
and S.C. Solomon, Stereo topographic models of Mercury after three MESSENGER
flybys, Planetary and Space Science, 59, 1910-1917, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PREUSKERETAL2017"
REFERENCE_DESC                 = "
Preusker, F., A. Stark, J. Oberst, K-D Matz, K. Gwinner, T. Roatsch,
and T.R. Watters, Toward high-resolution global topography of Mercury from
MESSENGER orbital stereo imaging: A prototype model for the H6 (Kuiper)
quadrangle, Planetary and Space Science, doi: 10.1016/j.pss.2017.04.012,
2017."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PROCKTERETAL2010"
REFERENCE_DESC                 = "
Prockter, L.M., C.M. Ernst, B.W. Denevi, C.R. Chapman, J.W. Head III, C.I.
Fassett, W.J. Merline, S.C. Solomon, T.R. Watters, R.G. Strom, G. Cremonese,
S. Marchi, and M. Massironi, Evidence for young volcanism on Mercury from the
third MESSENGER flyby, Science, 329, 668-671, 2010. [ Reprint | Full Text ]"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "PURUCKERETAL2009"
REFERENCE_DESC                 = "
Purucker, M.E., T.J. Sabaka, S.C. Solomon, B.J. Anderson, H. Korth, M.T.
Zuber, and G.A. Neumann, Mercury's internal magnetic field: Constraints on
large- and small-scale fields of crustal origin, Earth and Planetary Science
Letters, 285, 340-346, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "RAINESETAL2011"
REFERENCE_DESC                 = "
Raines, J.M., J.A. Slavin, T.H. Zurbuchen, G. Gloeckler, B.J. Anderson, D.N.
Baker, H. Korth, S.M. Krimigis, and R.L. McNutt, Jr., MESSENGER observations
of the plasma environment near Mercury, Planetary and Space Science, 59,
2004-2015, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "RAINESETAL2013"
REFERENCE_DESC                 = "
Raines, J.M., D.J. Gershman, T.H. Zurbuchen, M. Sarantos, J.A. Slavin, J.A.
Gilbert, H. Korth, B.J. Anderson, G. Gloeckler, S.M. Krimigis, D.N. Baker,
R.L. McNutt, Jr., and S.C. Solomon, Distribution and compositional variations
of plasma ions in Mercury's space environment: The first three Mercury
years of MESSENGER observations, Journal of Geophysical Research: Space
Physics, 118, 1604-1619, doi:10.1029/2012JA018073, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "RAINESETAL2014"
REFERENCE_DESC                 = "
Raines, J.M., D.J. Gershman, J.A. Slavin, T.H. Zurbuchen, H. Korth, B.J.
Anderson, and S.C. Solomon, Structure and dynamics of Mercury's
magnetospheric cusp: MESSENGER measurements of protons and planetary ions,
Journal of Geophysical Research: Space Physics, 119, 6587-6602,
doi:10.1002/JA2014020120, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "RAMOS-IZQUIERDO2005"
REFERENCE_DESC                 = "
Ramos-Izquierdo, L., V.S. Scott III, S. Schmidt, J. Britt, W. Mamakos,
R. Trunzo, J. Cavanaugh, and R. Miller, Optical system design and
integration of the Mercury Laser Altimeter, Applied Optics, 44,
1748-1760, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "RHODESETAL2011"
REFERENCE_DESC                 = "
Rhodes, E.A., L.G. Evans, L.R. Nittler, R.D. Starr, A.L. Sprague, D.J.
Lawrence, T.J. McCoy, K.R. Stockstill-Cahill, J.O. Goldsten, P.N. Peplowski,
D.K. Hamara, W.V. Boynton, and S.C. Solomon, Analysis of MESSENGER Gamma-Ray
Spectrometer data from Mercury flybys, Planetary and Space Science, 59,
1829-1841, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ROBINSONETAL2008"
REFERENCE_DESC                 = "
Robinson, M.S., S.L. Murchie, D.T. Blewett, D.L. Domingue, S.E. Hawkins, III,
J.W. Head, G.M. Holsclaw, W.E. McClintock, T.J. McCoy, R.L. McNutt, Jr., L.M.
Prockter, S.C. Solomon, and T.R. Watters, Reflectance and color variations on
Mercury: Regolith processes and compositional heterogeneity, Science, 321,
66-69, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SANTOETAL2001"
REFERENCE_DESC                 = "
Santo, A.G., R.E. Gold, R.L. McNutt, Jr., S.C. Solomon, C.J. Ercol,
R.W. Farquhar, T.J. Hartka, J.E. Jenkins, J.V. McAdams, L.E.
Mosher, D.F. Persons, D.A. Artis, R.S. Bokulic, R.F. Conde, G.
Dakermanji, M.E. Goss, Jr., D.R. Haley, K.J. Heeres, R.H. Maurer, R.C.
Moore, E.H. Rodberg, T.G. Stern, S.R. Wiley, B.G. Williams, C.L.
Yen, and M.R. Peterson, The MESSENGER mission to Mercury: Spacecraft
and mission design, Planetary and Space Science, 49, 1481-1500, 2001."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SANTOETAL2002"
REFERENCE_DESC                 = "
Santo, A.G., J.C. Leary, M.R. Peterson, R.K. Huebschman, M.E. Goss,
R.L. McNutt Jr., R.E. Gold, R.W. Farquhar, J.V. McAdams, R.F.
Conde, C.J. Ercol, S.E. Jaskulek, R.L. Nelson, B.A. Northrop, L.E.
Mosher, R.M. Vaughan, D.A. Artis, R.S. Bokulic, R.C. Moore, G.
Dakermanji, J.E. Jenkins, T.J. Hartka, D.F. Persons, and S.C.
Solomon, MESSENGER: The Discovery-class mission to orbit Mercury,
International Astronautical Congress, World Space Congress, American
Institute of Aeronautics and Astronautics, Paper IAC-02-U.4.1.04, 11
pp., Houston, TX, October 10-19, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SARANTOSETAL2009"
REFERENCE_DESC                 = "
Sarantos, M., J.A. Slavin, M. Benna, S.A. Boardsen, R.M. Killen, D. Schriver,
and P. Travnicek, Sodium-ion pickup observed above the magnetopause during
MESSENGER's first Mercury flyby: Constraints on neutral exospheric models,
Geophysical Research Letters, 36, L04106, doi:10.1029/2008GL036207, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SARANTOSETAL2011"
REFERENCE_DESC                 = "
Sarantos, M., R.M. Killen, W.E. McClintock, E.T. Bradley, R.J. Vervack, Jr.,
M. Benna, and J.A. Slavin, Limits to Mercury's magnesium exosphere from
MESSENGER second flyby observations, Planetary and Space Science, 59,
1992-2003, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SCHLEMMETAL2007"
REFERENCE_DESC                 = "
Schlemm, C.E., II, R.D. Starr, G.C. Ho, K.E. Bechtold, S.A.
Benedict, J.D. Boldt, W.V. Boynton, W. Bradley, M.E. Fraeman, R.E.
Gold, J.O. Goldsten, J.R. Hayes, S.E. Jaskulek, E. Rossano, R.A.
Rumpf, E.D. Schaefer, K. Strohbehn, R.G. Shelton, R.E. Thompson, J.I.
Trombka, and B.D. Williams, The X-Ray Spectrometer on the MESSENGER
spacecraft, Space Science Reviews, 131, 393-415, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SCHONETAL2011"
REFERENCE_DESC                 = "
Schon, S.C., J.W. Head, D.M.H. Baker, C.M. Ernst, L.M. Prockter, S.L.
Murchie, and S.C. Solomon, Eminescu impact structure: Insight into the
transition from complex crater to peak-ring basin on Mercury, Planetary and
Space Science, 59, 1949-1959, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SCHRIVERETAL2011"
REFERENCE_DESC                 = "
Schriver, D., P.M. Travnicek, B.J. Anderson, M. Ashour-Abdalla, D.N. Baker,
M. Benna, S.A. Boardsen, R.E. Gold, P. Hellinger, G.C. Ho, H. Korth, S.M.
Krimigis, R.L. McNutt, Jr., J.M. Raines, R.L. Richard, J.A. Slavin, S.C.
Solomon, R.D. Starr, and T.H. Zurbuchen, Quasi-trapped ion and electron
populations at Mercury, Geophysical Research Letters, 38, L23103,
doi:10.1029/2011GL049629, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SCHRIVERETAL2011B"
REFERENCE_DESC                 = "
Schriver, D., P. Travnicek, M. Ashour-Abdalla, R.L. Richard, P. Hellinger,
J.A. Slavin, B.J. Anderson, D.N. Baker, M. Benna, S.A. Boardsen, R.E. Gold,
G.C. Ho, H. Korth, S.M. Krimigis, W.E. McClintock, J.L. McLain, T.M. Orlando,
M. Sarantos, A.L. Sprague, and R.D. Starr, Electron transport and
precipitation at Mercury during the MESSENGER flybys, Planetary and Space
Science, 59, 2026-2036, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SCOTTETAL2011"
REFERENCE_DESC                 = "
Scott, C.J., J.V. McAdams, D.P. Moessner, and C.J. Ercol, Modeling the
effects of albedo and radiation pressures on the MESSENGER spacecraft,
Astrodynamics Specialist Conference, American Astronautical Society/ American
Institute of Aeronautics and Astronautics, paper AAS 11-552, 18 pp.,
Girdwood, AK, July 31 - August 4, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SEIDELMANNETAL2002"
REFERENCE_DESC                 = "
Seidelmann, P.K., V.K. Abalakin, M. Bursa, M.E. Davies, C. de Bergh, J.H. 
Lieske, J. Oberst, J.L. Simon, E.M. Standish, P. Stooke, and P.C. Thomas, 
Report of the IAU/IAG working group on cartographic coordinates and 
rotational elements of the planets and satellites: 2000, Celestial Mechanics 
and Dynamical Astronomy, 82, 83-111, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SEPAN&LAWRENCE2010"
REFERENCE_DESC                 = "
Sepan, D.M., and G.B. Lawrence, An approach to automating mission operations
telemetry and ranging contacts with the MESSENGER spacecraft, Space 2010
Conference and Exposition, American Institute of Aeronautics and
Astronautics, paper AIAA-2010-8760, 11 pp., Anaheim, CA, August 31 -
September 2, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVIN2000"
REFERENCE_DESC                 = "
Slavin, J.A., Mercury: Magnetosphere, in Encyclopedia of Astronomy and
Astrophysics, Institute of Physics Publishing, London, pp. 1705-1709,
2000."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVIN2004"
REFERENCE_DESC                 = "
Slavin, J.A., Mercury's magnetosphere, Advances in Space Research, 33,
1859-1874, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2007"
REFERENCE_DESC                 = "
Slavin, J.A., S.M. Krimigis, M.H. Acuna, B.J. Anderson, D.N. Baker,
P.L. Koehn, H. Korth, S. Livi, B.H. Mauk, S.C. Solomon, and T.H.
Zurbuchen, MESSENGER: Exploring Mercury's magnetosphere, Space Science
Reviews, 131, 133-160, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2008"
REFERENCE_DESC                 = "
Slavin, J.A., M.H. Acuna, B.J. Anderson, D.N. Baker, M. Benna, G. Gloeckler,
R.E. Gold, G.C. Ho, R.M. Killen, H. Korth, S.M. Krimigis, R.L. McNutt, Jr.,
L.R. Nittler, J.M. Raines, D. Schriver, S.C. Solomon, R.D. Starr, P.
Travnicek, and T.H. Zurbuchen, Mercury's magnetosphere after MESSENGER's
first flyby, Science, 321, 85-89, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2009"
REFERENCE_DESC                 = "
Slavin, J.A., M.H. Acuna, B.J. Anderson, S. Barabash, M. Benna, S.A.
Boardsen, M. Fraenz, G. Gloeckler, R.E. Gold, G.C. Ho, H. Korth, S.M.
Krimigis, R.L. McNutt, Jr., J.M. Raines, M. Sarantos, S.C. Solomon, T.-L.
Zhang, and T.H. Zurbuchen, MESSENGER and Venus Express observations of the
solar wind interaction with Venus, Geophysical Research Letters, 36, L09106,
doi:10.1029/2009GL037876, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2009C"
REFERENCE_DESC                 = "
Slavin, J.A., M.H. Acuna, B.J. Anderson, D.N. Baker, M. Benna, S.A. Boardsen,
G. Gloeckler, R.E. Gold, G.C. Ho, H. Korth, S.M. Krimigis, R.L. McNutt, Jr.,
J.M. Raines, M. Sarantos, D. Schriver,, S.C. Solomon, P. Travnicek, and T.H.
Zurbuchen, MESSENGER observations of magnetic reconnection in Mercury's
magnetosphere, Science, 324, 606-610, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2009B"
REFERENCE_DESC                 = "
Slavin, J.A., B.J. Anderson, T.H. Zurbuchen, D.N. Baker, S.M. Krimigis, M.H.
Acuna, M. Benna, S.A. Boardsen, G. Gloeckler, R.E. Gold, G.C. Ho, H. Korth,
R.L. McNutt, Jr., J.M. Raines, M. Sarantos, D. Schriver, S.C. Solomon, and P.
Travnicek, MESSENGER observations of Mercury's magnetosphere during northward
IMF, Geophysical Research Letters, 36, L02101, doi:10.1029/2008GL036158, 
2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2010"
REFERENCE_DESC                 = "
Slavin, J.A., B.J. Anderson, D.N. Baker, M. Benna, S.A. Boardsen, G.
Gloeckler, R.E. Gold, G.C. Ho, H. Korth, S.M. Krimigis, R.L. McNutt, Jr.,
L.R. Nittler, J.M. Raines, M. Sarantos, D. Schriver, S.C. Solomon, R.D.
Starr, P. Travnicek, and T.H. Zurbuchen, MESSENGER observations of extreme
loading and unloading of Mercury's magnetic tail, Science, 329, 665-668,
2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2010B"
REFERENCE_DESC                 = "
Slavin, J.A., R.P. Lepping, C.-C. Wu, B.J. Anderson, D.N. Baker, M. Benna,
S.A. Boardsen, R.M. Killen, H. Korth, S.M. Krimigis, W.E. McClintock, R.L.
McNutt, Jr., M. Sarantos, D. Schriver, S.C. Solomon, P. Travnicek, and T.H.
Zurbuchen, MESSENGER observations of large flux transfer events at Mercury,
Geophysical Research Letters, 37, L02105, doi:10.1029/2009GL041485, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2012"
REFERENCE_DESC                 = "
Slavin, J.A., S.M. Imber, S.A. Boardsen, G.A. DiBraccio, T. Sundberg, M.
Sarantos, T. Nieves-Chinchilla, A. Szabo, B.J. Anderson, H. Korth, T.H.
Zurbuchen, J.M. Raines, C.L. Johnson, R.M. Winslow, R.M. Killen, R.L. McNutt,
Jr., and S.C. Solomon, MESSENGER observations of a flux-transfer-event shower
at Mercury, Journal of Geophysical Research, 117, A00M06,
doi:10.1029/2012JE017926, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2012"
REFERENCE_DESC                 = "
Slavin, J.A., S.M. Imber, S.A. Boardsen, G.A. DiBraccio, T. Sundberg, M.
Sarantos, T. Nieves-Chinchilla, A. Szabo, B.J. Anderson, H. Korth, T.H.
Zurbuchen, J.M. Raines, C.L. Johnson, R.M. Winslow, R.M. Killen, R.L. McNutt,
Jr., and S.C. Solomon, MESSENGER observations of a flux-transfer-event shower
at Mercury, Journal of Geophysical Research, 117, A00M06,
doi:10.1029/2012JE017926, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2012B"
REFERENCE_DESC                 = "
Slavin, J.A., B.J. Anderson, D.N. Baker, M. Benna, S.A. Boardsen, R.E. Gold,
G.C. Ho, S.M. Imber, H. Korth, S.M. Krimigis, R.L. McNutt, Jr., J.M. Raines,
M. Sarantos, D. Schriver, S.C. Solomon, P. Travnicek, and T.H. Zurbuchen,
MESSENGER and Mariner 10 flyby observations of magnetotail structure and
dynamics at Mercury, Journal of Geophysical Research, 117, A01215,
doi:10.1029/2011JA016900, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SLAVINETAL2014"
REFERENCE_DESC                 = "
Slavin, J.A., G.A. DiBraccio, D.J. Gershman, S.M. Imber, G.K. Poh, J. M
Raines, T.H. Zurbuchen, X. Jia, D.N. Baker, K.-H. Glassmeier, S.A. Livi, S.A.
Boardsen, T.A. Cassidy, M. Sarantos, T. Sundberg, A. Masters, C.L. Johnson,
R.M. Winslow, B.J. Anderson, H. Korth, R.L. McNutt, Jr., and S.C. Solomon,
MESSENGER observations of Mercury dayside magnetosphere under extreme solar
wind conditions, Journal of Geophysical Research: Space Physics, 119,
8087-8116, doi:10.1002/2014JA020319, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SMITHETAL2006"
REFERENCE_DESC                 = "
Smith, D.E., M.T. Zuber, X. Sun, G.A. Neumann, J.F. Cavanaugh, J.F.
McGarry, and T.W. Zagwodzki, Two-way laser link over interplanetary
distance, Science, 311, 53, 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SMITHETAL2010"
REFERENCE_DESC                 = "
Smith, D.E., M.T. Zuber, R.J. Phillips, S.C. Solomon, G.A. Neumann, F.G.
Lemoine, S.J. Peale, J.L. Margot, M.J. Talpe, J.W. Head III, S.A. Hauck II,
M.H. Torrence, C.L. Johnson, M.E. Perry, O.S. Barnouin, R.L. McNutt, Jr., and
J. Oberst, The equatorial shape and gravity field of Mercury from MESSENGER
flybys 1 and 2, Icarus, 209, 88-100, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SMITHETAL2012"
REFERENCE_DESC                 = "
Smith, D.E., M.T. Zuber, R.J. Phillips, S.C. Solomon, S.A. Hauck, II, F.G.
Lemoine, E. Mazarico, G.A. Neumann, S.J. Peale, J.L. Margot, C.L. Johnson,
M.H. Torrence, M.E. Perry, D.D. Rowlands, S. Goossens, J.W. Head, and A.H.
Taylor, Gravity field and internal structure of Mercury from MESSENGER,
Science, 336, 214-217, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SNYDER1987"
REFERENCE_DESC                 = "
Snyder, J.P., Map Projections - A Working Manual, U. S. Geological Survey 
Professional Paper 1395, 383 pp., 1987."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMON&MCNUTT2007"
REFERENCE_DESC                 = "
Solomon, S.C., and R.L. McNutt, Jr., Looking at Mercury: The MESSENGER
mission to Mercury, in Space Exploration 2007, edited by B. Harvey,
Praxis Publishing, Chichester, U.K., pp. 50-57, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMON2000"
REFERENCE_DESC                 = "
Solomon, S.C., Return to the iron planet, New Scientist, 165 (2223),
32-35, January 29, 2000."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMON2003"
REFERENCE_DESC                 = "
Solomon, S.C., Mercury: The enigmatic innermost planet, Earth and
Planetary Science Letters, 216, 441-455, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMON2005"
REFERENCE_DESC                 = "
Solomon, S.C., The Director's report: Investigation, research, and
discovery, Year Book 03/04, Carnegie Institution of Washington,
Washington, DC, pp. 60-66, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMON2010"
REFERENCE_DESC                 = "
Solomon, S.C., Foreword to the special issue of Planetary and Space Science
on the BepiColombo mission to Mercury, Planetary and Space Science, 58, 1,
2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMON2000"
REFERENCE_DESC                 = "
Solomon, S.C., Return to the iron planet, New Scientist, 165, 32-35, January
29, 2000."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMONETAL2001"
REFERENCE_DESC                 = "
Solomon, S.C., R.L. McNutt, Jr., R.E. Gold, M.H. Acuna, D.N. Baker,
W.V. Boynton, C.R. Chapman, A.F. Cheng , G. Gloeckler, J.W. Head,
III, S.M. Krimigis, W.E. McClintock, S.L. Murchie, S.J. Peale, R.J.
Phillips, M.S. Robinson, J.A. Slavin, D.E. Smith, R.G. Strom, J.I.
Trombka, and M.T. Zuber, The MESSENGER mission to Mercury: Scientific
objectives and implementation, Planetary and Space Science, 49,
1445-1465, 2001."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMONETAL2007"
REFERENCE_DESC                 = "
Solomon, S.C., R.L. McNutt, Jr., R.E. Gold, and D.L. Domingue,
MESSENGER mission overview, Space Science Reviews, 131, 3-39, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMONETAL2007B"
REFERENCE_DESC                 = "
Solomon, S.C., and R.L. McNutt, Jr., Looking at Mercury: The MESSENGER
mission to Mercury, in Space Exploration 2007, edited by B. Harvey, Praxis
Publishing, Chichester, U.K., pp. 50-57, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMONETAL2008"
REFERENCE_DESC                 = "
Solomon, S.C., R.L. McNutt, Jr., T.R. Watters, D.J. Lawrence, W.C. Feldman,
J.W. Head, S.M. Krimigis, S.L. Murchie, R.J. Phillips, J.A. Slavin, and M.T.
Zuber, Return to Mercury: A global perspective on MESSENGER's first Mercury
flyby, Science, 321, 59-62, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMONETAL2009"
REFERENCE_DESC                 = "
Solomon, S.C., L.M. Prockter, and D.T. Blewett, MESSENGER at Mercury: An
introduction to the special issue of Earth and Planetary Science Letters,
Earth and Planetary Science Letters, 285, 225-226, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMONETAL2009B"
REFERENCE_DESC                 = "
Solomon, S.C., and R.L. McNutt, Jr., MESSENGER mission, McGraw-Hill Yearbook
of Science & Technology 2009, McGraw-Hill, New York, pp. 208-211, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMONETAL2011"
REFERENCE_DESC                 = "
Solomon, S.C., R.L. McNutt, Jr., and L.M. Prockter, Mercury after the
MESSENGER flybys: An introduction to the special issue of Planetary and Space
Science, Planetary and Space Science, 59, 1827-1828, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SOLOMONETAL2011B"
REFERENCE_DESC                 = "
Solomon, S.C., A new look at the planet Mercury, Physics Today, 64, 50-55,
January 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SRINIVASANETAL2005A"
REFERENCE_DESC                 = "
Srinivasan, D.K., R.E. Wallis, D.W. Royster, J.R. Bruzzi, P.M.
Malouf, and K.B. Fielhauer, Spacecraft-level testing and verification
of an X-band phased array, Institute of Electrical and Electronics
Engineers (IEEE) Aerospace Conference, IEEEAC paper 1059, 9 pp., Big
Sky, MT, March 5- 12, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SRINIVASANETAL2005B"
REFERENCE_DESC                 = "
Srinivasan, D.K., R.M. Vaughan, R.E. Wallis, M.A. Mirantes, T.A.
Hill, S. Cheng, J.R. Bruzzi, and K.B. Fielhauer, Implementation of an
X-band phased-array subsystem in a deep space mission, Institute of
Electrical and Electronics Engineers (IEEE) Aerospace Conference, IEEEAC
paper 1067, 11 pp., Big Sky, MT, March 5-12, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SRINIVASANETAL2007"
REFERENCE_DESC                 = "
Srinivasan, D.K., M.E. Perry, K.B. Fielhauer, D.E. Smith, and M.T. Zuber,
Application of the MESSENGER radio frequency subsystem to meet the mission
radio science objectives, Space Science Reviews, 131, 557-571, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STANBRIDGEETAL2011"
REFERENCE_DESC                 = "
Stanbridge, D.R., K.E. Williams, A.H. Taylor, B.R. Page, C.G. Bryan, D.W.
Dunham, P. Wolff, B.G. Williams, J.V. McAdams, and D.P. Moessner, Available
force model accuracies for MESSENGER in Mercury orbit, Astrodynamics
Specialist Conference, American Astronautical Society/ American Institute of
Aeronautics and Astronautics, paper AAS 11-548, 19 pp., Girdwood, AK, July 31
- August 4, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STANLEYETAL2005"
REFERENCE_DESC                 = "
Stanley, S., J. Bloxham, W.E. Hutchison, and M.T. Zuber, Thin shell
dynamo models consistent with Mercury's weak observed magnetic field,
Earth and Planetary Science Letters, 234, 27-38, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STARKETAL2015"
REFERENCE_DESC                 = "
Stark, A., J. Oberst, H. Hussmann, Mecury's resonant rotation from secular
orbital elements, Celestial Mechanics and Dynamical Astronomy,
doi: 10.1007/s10569-015-9633-4, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STARKETAL2015B"
REFERENCE_DESC                 = "
Stark, A., J. Oberst, F. Preusker, S.J. Peale, J.-L. Margot, R.J. Phillips,
G.A. Neumann, D.E. Smith, M.T. Zuber, and S.C. Solomon, First MESSENGER
orbital observations of Mercury's librations, Geophysical Research Letters,
42, 7881-7889, doi:10.1002/2015GL065152, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STARKETAL2015C"
REFERENCE_DESC                 = "
Stark, A., J. Oberst, F. Preusker, K. Gwinner, S.J. Peale, J.-L. Margot, R.J.
Phillips, M.T. Zuber, and S.C. Solomon, Mercury's rotational parameters
from MESSENGER image and laser altimetry data: A feasibility study, Planetary
and Space Science, 117, 64-72, doi:10.1016/j.pss.2015.05.006, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STARRETAL2012"
REFERENCE_DESC                 = "
Starr, R.D., D. Schriver, L.R. Nittler, S.Z. Weider, P.K. Byrne, G.C. Ho,
E.A. Rhodes, S.E. Schlemm II, S.C. Solomon, and P.M. Tr?vn??ek, MESSENGER
detection of electron-induced X-ray fluorescence from Mercury's surface,
Journal of Geophysical Research, 117, E00L02, doi:10.1029/2012JE004118, 
2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STARRETAL2016"
REFERENCE_DESC                 = "
Starr, R.D., C.E. Schlemm II, G.C. Ho, L.R. Nittler, R.E. Gold, and S.C.
Solomon, Calibration of the MESSENGER X-Ray Spectrometer, Planetary and Space
Science, 122, 13-25, 2016."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STEELEETAL2009"
REFERENCE_DESC                 = "
Steele, R.J., T.H. Choo, J.P. Skura, B.J. Anderson, and E.J. Finnegan,
Comprehensive mission simulation contingency analyses: Achieving science
observation plan resiliency by design, Space 2009 Conference and Exposition,
American Institute of Aeronautics and Astronautics, paper AIAA-2009-6464, 9
pp., Pasadena, CA, September 14-17, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STILWELLETAL2003"
REFERENCE_DESC                 = "
Stilwell, R.K., R.E. Wallis, and M.L. Edwards, A circularly
polarized, electrically scanned slotted waveguide array suitable for
high temperature environments, Proceedings of the Institute of
Electrical and Electronics Engineers (IEEE) International Symposium on
Antennas and Propagation and United States National Committee, Canadian
National Committee, International Union of Radio Science (URSI) North
American Radio Science Meeting, Columbus, OH, vol. 3, pp. 1030-1033,
June 22-27, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STOCKSTILL-CETAL2012"
REFERENCE_DESC                 = "
Stockstill-Cahill, K.R., T.J. McCoy, L.R. Nittler, S.Z. Weider, and S.A.
Hauck II, Magnesium-rich crustal compositions on Mercury: Implications for
magmatism from petrologic modeling, Journal of Geophysical Research, 117,
E00L15, doi:10.1029/2012JE004140, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STRATTONETAL2003"
REFERENCE_DESC                 = "
Stratton, W.C., C.M. Frangos, J.J. Harrison, and D.B. Holland, Reuse
of the JPL CFDP software in the APL Common Ground System, Proceedings of
the 5th International Symposium on Reducing the Cost of Spacecraft
Ground Systems and Operations, Paper 103-A0036, 8 pp., Pasadena, CA,
July 8-12, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STROMETAL2008"
REFERENCE_DESC                 = "
Strom, R.G., C.R. Chapman, W.J. Merline, S.C. Solomon, and J.W. Head, III,
Mercury cratering record viewed from MESSENGER's first flyby, Science, 321,
79-81, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "STROMETAL2011"
REFERENCE_DESC                 = "
Strom, R.G., M.E. Banks, C.R. Chapman, C.I. Fassett, J.A. Forde, J.W. Head
III, W.J. Merline, L.M. Prockter, and S.C. Solomon, Mercury crater statistics
from MESSENGER flybys: Implications for stratigraphy and resurfacing history,
Planetary and Space Science, 59, 1960-1967, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SUNDBERGETAL2011"
REFERENCE_DESC                 = "
Sundberg, T., S.A. Boardsen, J.A. Slavin, L.G. Blomberg, J.A. Cumnock, S.C.
Solomon, B.J. Anderson, and H. Korth, Reconstruction of propagating Kelvin-
Helmholtz vortices at Mercury's magnetopause, Planetary and Space Science,
59, 2051-2057, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SUNDBERGETAL2012"
REFERENCE_DESC                 = "
Sundberg, T., J.A. Slavin, S.A. Boardsen, B.J. Anderson, H. Korth, G.C. Ho,
D. Schriver, V.M. Uritsky, T.H. Zurbuchen, J.M. Raines, D.N. Baker, S.M.
Krimigis, R.L. McNutt, Jr., and S.C. Solomon, MESSENGER observations of
depolarization events in Mercury's magnetotail, Journal of Geophysical
Research, 117, A00M03, doi:10.1029/2012JA017756, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SUNDBERGETAL2012B"
REFERENCE_DESC                 = "
Sundberg, T., S.A. Boardsen, J.A. Slavin, B.J. Anderson, H. Korth, T.H.
Zurbuchen, J.M. Raines, and S.C. Solomon, MESSENGER orbital observations of
large-amplitude Kelvin-Helmholtz waves at Mercury's magnetopause, Journal
of Geophysical Research, 117, A04216, doi:10.1029/2011JA017268, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SUNDBERGETAL2013"
REFERENCE_DESC                 = "
Sundberg, T., S.A. Boardsen, J.A. Slavin, V.M. Uritsky, B.J. Anderson, H.
Korth, and S.C. Solomon, Mercury's bow shock under quasi-parallel conditions:
MESSENGER observations, Journal of Geophysical Research: Space Physics, 118,
6457-6464, doi:10.1002/jgra.50602, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SUNETAL2004"
REFERENCE_DESC                 = "
Sun, X., J.F. Cavanaugh, J.C. Smith, and A.E. Bartels, Mercury Laser
Altimeter instrument design, testing, and performance verification,
Proceedings of the 22nd International Laser Radar Conference (ILRC
2004), Special Publication SP-561, pp. 961-964, European Space Agency,
Noordwijk, The Netherlands, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SUN&NEUMANN2014"
REFERENCE_DESC                 = "
Sun, X., and G.A. Neumann, Calibration of the Mercury Laser Altimeter on the 
MESSENGER Spacecraft, IEEE Transactions on Geoscience and Remote Sensing, Vol.
53, Issue 5, pp. 2860-2874, doi:10.1109/TGRS.2014.2366080, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "SUSORNEYETAL2016"
REFERENCE_DESC                 = "
Susorney, H.C.M., O.S. Barnouin, E.M. Ernst, and C.L. Johnson, Morphometry of
impact craters on Mercury from MESSENGER altimetry and imaging, Icarus, 271,
180-193, 2016."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "TALPEETAL2012"
REFERENCE_DESC                 = "
Talpe, M.J., M.T. Zuber, D. Yang, G.A. Neumann, S.C. Solomon, E. Mazarico,
and F. Vilas, Characterization of the morphometry of impact craters hosting
polar deposits in Mercury's north polar regions, Journal of Geophysical
Research, 117, E00L13, doi:10.1029/2012JE004155, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "TAMETAL2002"
REFERENCE_DESC                 = "
Tam, W., S. Wiley, K. Dommer, L. Mosher, and D. Persons, Design and
manufacture of the MESSENGER propellant tank assembly, 38th American
Institute of Aeronautics and Astronautics/American Society of Mechanical
Engineers /Society of Automotive Engineers/American Society for
Engineering Education (AIAA/ASME/SAE/ASEE) Joint Propulsion Conference,
Paper AIAA 2002-4139, 17 pp., Indianapolis, IN, July 7-10, 2002."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "TAYLORETAL2007"
REFERENCE_DESC                 = "
Taylor, A., E. Carranza, J. Milller, D. Stanbridge, B. Page, J. Smith, P.
Wolff, B. Williams, L. Efron, R. Farquhar, J. McAdams, and D. Dunham, Earth
to Venus flyby 1 navigation results for NASA's MESSENGER mission to Mercury,
17th Space Flight Mechanics Conference, American Astronautical
Society/American Institute of Aeronautics and Astronautics, paper AAS 07-171,
20 pp., Sedona, AZ, January 28 - February 1, 2007.  (Also published in
Spaceflight Mechanics 2007, Advances in the Astronautical Sciences, 127, Part
I, 1081-1100, 2007.)"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "TRELA2008"
REFERENCE_DESC                 = "
Trela, M.D., In-flight performance of the MESSENGER propulsion system,
Chemical Propulsion Information Analysis Center Bulletin, 34, Whiting School
of Engineering, The Johns Hopkins University, Baltimore, MD, pp. 1, 4-5,
March 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "TRAVNICEKETAL2009"
REFERENCE_DESC                 = "
Travnicek, P.M., P. Hellinger, D. Schriver, D. Herc?k, J.A. Slavin, and B.J.
Anderson, Kinetic instabilities in Mercury's magnetosphere: Three-dimensional
simulation results, Geophysical Research Letters, 36, L07104,
doi:10.1029/2008GL036630, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "TRAVNICEKETAL2010"
REFERENCE_DESC                 = "
Travnicek, P.M., D. Schriver, P. Hellinger, D. Hercik, B.J. Anderson, M.
Sarantos, and J.A. Slavin, Mercury's magnetosphere-solar wind interaction for
northward and southward interplanetary magnetic field: Hybrid simulation
results, Icarus, 209, 11-22, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "UNOETAL2009"
REFERENCE_DESC                 = "
Uno, H., C.L. Johnson, B.J. Anderson, H. Korth, and S.C. Solomon, Modeling
Mercury's internal magnetic field with smooth inversions, Earth and Planetary
Science Letters, 285, 328-339, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "VAUGHANETAL2001"
REFERENCE_DESC                 = "
Vaughan, R.M., D.R. Haley, D.J. O'Shaughnessy, and H.S. Shapiro,
Momentum management for the MESSENGER Mission, American Aeronautical
Society/American Institute of Aeronautics and Astronautics Astrodynamics
Specialist Conference, Paper AAS 01-380, 22 pp., Quebec City, Quebec,
Canada, July 30 to August 2, 2001."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "VAUGHANETAL2005A"
REFERENCE_DESC                 = "
Vaughan, R.M., D.J. O'Shaughnessy, H.S. Shapiro, G.D. Rogers, B.L.
Kantsiper, D.R. Haley, and J.C. Bunn, MESSENGER guidance and control
system performance during initial operations, 28th Annual American
Astronautical Society (AAS) Guidance and Control Conference, Paper AAS
05-083, 20 pp., Breckenridge, CO, February 4-8, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "VAUGHANETAL2005B"
REFERENCE_DESC                 = "
Vaughan, R.M., D.J. O'Shaughnessy, H.S. Shapiro, and D.R. Haley, The
MESSENGER spacecraft guidance and control system, NASA 2005 Flight
Mechanics Symposium, NASA Goddard Space Flight Center, 15 pp., October
18-20, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "VAUGHANETAL2006"
REFERENCE_DESC                 = "
Vaughan, R.M., J.C. Leary, R.F. Conde, G. Dakermanji, C.J. Ercol, K.B.
Fielhauer, D.G. Grant, T.J. Hartka, T.A. Hill, S.E. Jaskulek, J.V.
McAdams, M.A. Mirantes, D.F. Persons, and D.K. Srinivasan, Return
to Mercury: The MESSENGER spacecraft and mission, Institute of
Electrical and Electronics Engineers (IEEE) Aerospace Conference, IEEEAC
paper 1562, 15 pp., Big Sky, MT, March 4-11, 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "VAUGHANETAL2008"
REFERENCE_DESC                 = "
Vaughan, R.M., D.J. O'Shaughnessy, H.K. Kang, and N. Laslo, Spacecraft
pointing for science operations for MESSENGER's Venus flyby 2 and Mercury
flyby 1, 2008 Guidance, Navigation and Control Conference, American Institute
of Aeronautics and Astronautics, paper AIAA-2008-7479, 21 pp., Honolulu, HI,
August 18-21, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "VAUGHANETAL2011"
REFERENCE_DESC                 = "
Vaughan, R.M., D.J. O'Shaughnessy, and S.H. Flanigan, MESSENGER spacecraft
pointing performance during the mission's Mercury orbital phase,
Astrodynamics Specialist Conference, American Astronautical Society/ American
Institute of Aeronautics and Astronautics, paper AAS 11-551, 20 pp.,
Girdwood, AK, July 31 - August 4, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "VERVACKETAL2010"
REFERENCE_DESC                 = "
Vervack, R.J., Jr., W.E. McClintock, R.M. Killen, A.L. Sprague, B.J.
Anderson, M.H. Burger, E.T. Bradley, N. Mouawad, S.C. Solomon, and N.R.
Izenberg, Mercury's complex exosphere: Results from MESSENGER's third flyby,
Science, 329, 672-675, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "VILIMETAL2010"
REFERENCE_DESC                 = "
Vilim, R., S. Stanley, and S.A. Hauck II, Iron snow zones as a mechanism for
generating Mercury's weak observed magnetic field, Journal of Geophysical
Research, 115, E11003, doi:10.1029/2009JE003528."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WALLIS&CHENG2001"
REFERENCE_DESC                 = "
Wallis, R.E., and S. Cheng, Solid-state phased-array antenna system for
the MESSENGER deep space mission, Institute of Electrical and Electronic
Engineers (IEEE) Aerospace Conference, Paper 2.0104, 9 pp., CD Track 2:
Space Missions, Systems, and Architecture, Big Sky, MT, March 10-17,
2001."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WALLISETAL2004"
REFERENCE_DESC                 = "
Wallis, R.E., J.R. Bruzzi, and P.M. Malouf, Testing of the MESSENGER
spacecraft phased- array antenna, Antenna Measurements Techniques
Association 26th Annual Meeting and Symposium, pp 331-336, October 2004.
(Article reprinted in IEEE Antennas & Propagation, 47 (1), February
2005.)"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WALLISETAL2007"
REFERENCE_DESC                 = "
Wallis, R.E., S. Cheng, P.M. Malouf, and R.K. Stilwell, Advances in microwave
technology for the MESSENGER mission to Mercury, International Microwave
Symposium 2007, Institute of Electrical and Electronic Engineers Microwave
Theory and Techniques Society, pp. 939-942, Honolulu, HI, June 3-8, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WANG&IP2011"
REFERENCE_DESC                 = "
Wang, Y.C., and W.H. Ip, Source dependency of exospheric sodium on Mercury, 
Icarus, 216, 387-402, 2011."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WATTERSETAL2009"
REFERENCE_DESC                 = "
Watters, T.R., S.C. Solomon, M.S. Robinson, J.W. Head, S.L. Andre, S.A.
Hauck, II, and S.L. Murchie, The tectonics of Mercury: The view after
MESSENGER's first flyby, Earth and Planetary Science Letters, 285, 283-296,
2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WATTERSETAL2009B"
REFERENCE_DESC                 = "
Watters, T.R., J.W. Head, S.C. Solomon, M.S. Robinson, C.R. Chapman, B.W.
Denevi, C.I. Fassett, S.L. Murchie, and R.G. Strom, Evolution of the
Rembrandt impact basin on Mercury, Science, 324, 618-621, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WATTERSETAL2009C"
REFERENCE_DESC                 = "
Watters, T.R., S.L. Murchie, M.S. Robinson, S.C. Solomon, B.W. Denevi, S.L.
Andre, and J.W. Head, Emplacement and tectonic deformation of smooth plains
in the Caloris basin, Mercury, Earth and Planetary Science Letters, 285,
309-319, 2009."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WATTERSETAL2012"
REFERENCE_DESC                 = "
Watters, T.R., S.C. Solomon, C. Klimczak, A.M. Freed, J.W. Head, C.M. Ernst,
D.M. Blair, T.A. Goudge, and P.K. Byrne, Extension and contractions within
volcanically buried craters and basins on Mercury, Geology, 40, 1123-1126,
2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WEIDERETAL2012"
REFERENCE_DESC                 = "
Weider, S.Z., L.R. Nittler, R.D. Starr, T.J. McCoy, K.R. Stockstill-Cahill,
P.K. Byrne, B.W. Denevi, J.W. Head, and S.C. Solomon, Chemical heterogeneity
on Mercury's surface revealed by the MESSENGER X-Ray Spectrometer, Journal of
Geophysical Research, 117, E00L05, doi:10.1029/2012JE004153, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WEIDERETAL2013"
REFERENCE_DESC                 = "
Weider, S.Z., and L.R. Nittler, The surface composition of Mercury as seen
from MESSENGER, Elements, 9, 90-91, April 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WEIDERETAL2014"
REFERENCE_DESC                 = "
Weider, S.Z., L.R. Nittler, R.D. Starr, T.J. McCoy, and S.C. Solomon,
Variations in the abundance of iron on the surface of Mercury from MESSENGER
X-Ray Spectrometer observations, Icarus, 235, 170-186, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WEIDERETAL2015"
REFERENCE_DESC                 = "
Weider, S.Z., L.R. Nittler, R.D. Starr, E.J. Crapster-Pregont, P.N.
Peplowski, B.W. Denevi, J.W. Head, P.K. Byrne, S.A. Hauck, II, D.S. Ebel, and
S.C. Solomon, Evidence for geochemical terranes on Mercury: Global mapping of
major elements with MESSENGER's X-Ray Spectrometer, Earth and Planetary
Science Letters, 416, 109-120, 2015."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WEINHOLD&PERSONS2003"
REFERENCE_DESC                 = "
Weinhold, P.D., and D.F. Persons, The development of high-temperature
composite solar array substrate panels for the MESSENGER spacecraft,
SAMPE (Society for the Advancement of Materials and Process Engineering)
Journal, 39 (6), 6-17, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WHITTENETAL2014"
REFERENCE_DESC                 = "
Whitten, J.L., J.W. Head, B.W. Denevi, and S.C. Solomon, Intercrater plains
on Mercury: Insights into unit definition, characterization, and origin from
MESSENGER datasets, Icarus, 241, 97-114, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WILEYETAL2003"
REFERENCE_DESC                 = "
Wiley, S., K. Dommer, and L. Mosher, Design and development of the
MESSENGER propulsion system, 39th American Institute of Aeronautics and
Astronautics/Society of Automotive Engineers/American Society of
Mechanical Engineers (AIAA/SAE/ASME/ASEE) Joint Propulsion Conference,
Paper AIAA-2003-5078, 20 pp., Huntsville, AL, July 21-24, 2003."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WILEYETAL2006"
REFERENCE_DESC                 = "
Wiley, S., K. Dommer, C. Engelbrecht, and R. Vaughan, MESSENGER
propulsion system flight performance, 42nd American Institute of
Aeronautics and Astronautics/American Society of Mechanical
Engineers/Society of Automotive Engineers/American Society for
Engineering Education (AIAA/ASME/SAE/ASEE) Joint Propulsion Conference,
Paper AIAA 2005-2216, 18 pp., Sacramento, CA, July 9-12, 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WILLIAMSETAL2005"
REFERENCE_DESC                 = "
Williams, B., A. Taylor, E. Carranza, J. Miller, D. Stanbridge, B. Page,
D. Cotter, L. Efron, R. Farquhar, J. McAdams, and D. Dunham, Early
navigation results for NASA's MESSENGER mission to Mercury, 15th
American Astronautical Society (AAS)/American Institute of Aeronautics
and Astronautics (AIAA) Space Flight Mechanics Conference, Paper AAS
05-176, 19 pp., Copper Mountain, CO, January 23- 27, 2005."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WILLIAMSETAL2008B"
REFERENCE_DESC                 = "
Williams, K.E., A.H. Taylor, D.R. Stanbridge, P.J. Wolff, B.R. Page, B.G.
Williams, and J.V. McAdams, Navigation for the MESSENGER mission's first
Mercury encounter, 2008 Astrodynamics Specialist Conference, American
Astronautical Society/American Institute of Aeronautics and Astronautics,
paper AIAA-2008-6761, 20 pp., Honolulu, HI, August 18-21, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WILLIAMSETAL2008C"
REFERENCE_DESC                 = "
Williams, K.E., A.H. Taylor, B.R. Page, J.K. Miller, J. Smith, P. Wolff, D.
Stanbridge, B.G. Williams, and J.V. McAdams, Navigation for the second Venus
flyby of the MESSENGER mission to Mercury, 18th Space Flight Mechanics
Conference, American Astronautical Society/American Institute of Aeronautics
and Astronautics, paper AAS 08-172, 20 pp., Galveston, TX, January 27-31,
2008.  (Also published in Spaceflight Mechanics 2008, Advances in the
Astronautical Sciences, 130, Part II, 1113-1132, 2008.)"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WILSONETAL2012"
REFERENCE_DESC                 = "
Wilson, M.N., C.S. Engelbrecht, and M.D. Trela, Flight performance of the
MESSENGER propulsion system from launch to orbit insertion, 48th Joint
Propulsion Conference, American Institute of Aeronautics and
Astronautics/American Society of Mechanical Engineers/Society of Automotive
Engineers/American Society for Engineering Education, paper AIAA 2012-4333,
23 pp., Atlanta, GA, July 30 - August 1, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WILSONETAL2013"
REFERENCE_DESC                 = "
Wilson, M.N., C.S. Engelbrecht and D.E. Jaekle, Jr., MESSENGER propulsion
system: Strategies for orbit-phase propellant extraction at low fill
fractions, 49th Joint Propulsion Conference and Exhibit, American Institute
of Aeronautics and Astronautics/American Society of Mechanical
Engineers/Society of Automotive Engineers/American Society for Engineering
Education, paper AIAA-2013-3757, 15 pp., San Jose, CA, July 14-17, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WINSLOWETAL2012"
REFERENCE_DESC                 = "
Winslow, R.M., C.L. Johnson, B.J. Anderson, H. Korth, J.A. Slavin, M.E.
Purucker, and S.C. Solomon, Observations of Mercury's northern cusp region
with MESSENGER's Magnetometer, Geophysical Research Letters, 39, L08112,
doi:10.1029/2012GL051472, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WINSLOWETAL2013"
REFERENCE_DESC                 = "
Winslow, R.M., B.J. Anderson, C.L. Johnson, J.A. Slavin, H. Korth, M.E.
Purucker, D.N. Baker, and S.C. Solomon, Mercury's magnetopause and bow
shock from MESSENGER Magnetometer observations, Journal of Geophysical
Research: Space Physics, 118, 2213-2227, doi:10.1002/jgra.50237, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WINSLOWETAL2014"
REFERENCE_DESC                 = "
Winslow, R.M., C.L. Johnson, B.J. Anderson, D.J. Gershman, J.M. Raines, R.J.
Lillis, H. Korth, J.A. Slavin, S.C. Solomon, T.H. Zurbuchen, and M.T. Zuber,
Mercury's surface magnetic field determined from proton-reflection
magnetometry, Geophysical Research Letters, 41, 4463-4470,
doi:10.1002/2014GL060258, 2014."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "WINTERSETAL2007"
REFERENCE_DESC                 = "
Winters, H.L., D.L. Domingue, T.H. Choo,, R. Espiritu, E. Malaret, J.P.
Skura, and J. Steele, The MESSENGER Science Operations Center, Space
Science Reviews, 131, 601-623, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "XIAOETAL2013"
REFERENCE_DESC                 = "
Xiao, Z., R.G. Strom, D.T. Blewett, P.K. Byrne, S.C. Solomon, S.L. Murchie,
A.L. Sprague, D.L. Domingue, and J. Helbert, Dark spots on Mercury: A
distinctive low-reflectance material and its relation to hollows, Journal of
Geophysical Research: Planets, 118, 1752-1765, doi:10.1002/jgre.20015, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "YEN2001"
REFERENCE_DESC                 = "
Yen, C.L., New trajectory options for ballistic Mercury orbiter mission, 2001
Space Flight Mechanics Conference, American Astronautical Society/American
Institute of Aeronautics and Astronautics, paper AAS 01-158, 8 pp., Santa
Barbara, CA, February 11-15, 2001.  (Also published in Spaceflight Mechanics
2001, Advances in the Astronautical Sciences, 108, Part II, 799-806, 2001.)"
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "YSEBOODTETAL2010"
REFERENCE_DESC                 = "
Yseboodt, M., J.L. Margot, and S.J. Peale, Analytical model of the long-
period forced longitude librations of Mercury, Icarus, 207, 536-544, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ZOLOTOVETAL2013"
REFERENCE_DESC                 = "
Zolotov, M. Yu., A.L. Sprague, S.A. Hauck, II, L.R. Nittler, S.C. Solomon,
and S.Z. Weider, The redox state, FeO content, and origin of sulfur-rich
magmas on Mercury, Journal of Geophysical Research: Planets, 118, 138-146,
doi:10.1029/2012JE004274, 2013."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ZUBER2006"
REFERENCE_DESC                 = "
Zuber, M.T., Seconds of data...years of trying, Photonics Spectra, 40
(5), pp. 56-62, May 2006."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ZUBERETAL2007B"
REFERENCE_DESC                 = "
Zuber, M.T., O. Aharonson, J.M. Aurnou, A.F. Cheng, S.A. Hauck, II,
M.H. Heimpel, G.A. Neumann, S.J. Peale, R.J. Phillips, D.E. Smith,
S.C. Solomon, and S. Stanley, The geophysics of Mercury: Current status
and anticipated insights form the MESSENGER mission, Space Science
Reviews, 131, 105-132, 2007."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ZUBERETAL2008"
REFERENCE_DESC                 = "
Zuber, M.T., D.E. Smith, S.C. Solomon, R.J. Phillips, S.J. Peale, J.W. Head,
III, S.A. Hauck, II, R.L. McNutt, Jr., J. Oberst, G.A. Neumann, F.G. Lemoine,
X. Sun, O. Barnouin-Jha, and J.K. Harmon, Laser altimeter observations from
MESSENGER's first Mercury flyby, Science, 321, 77-79, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ZUBERETAL2010"
REFERENCE_DESC                 = "
Zuber, M.T., L.G. Montesi, G.T. Farmer, S.A. Hauck II, J.A. Ritzer, R.J.
Phillips, S.C. Solomon, D.E. Smith, M.J. Talpe, J.W. Head III, G.A. Neumann,
T.R. Watters, and C.L. Johnson, Accommodation of lithospheric shortening on
Mercury from altimetric profiles of ridges and lobate scarps measured during
MESSENGER flybys 1 and 2, Icarus, 209, 247-255, 2010."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ZUBERETAL2012B"
REFERENCE_DESC                 = "
Zuber, M.T., D.E. Smith, R.J. Phillips, S.C. Solomon, G.A. Neumann, S.A.
Hauck, II, S.J. Peale, O.S. Barnouin, J.W. Head, C.L. Johnson, F.G. Lemoine,
E. Mazarico, X. Sun, M.H. Torrence, A.M. Freed, C. Klimczak, J.L. Margot, J.
Oberst, M.E. Perry, C.M. Ernst, R.J. McNutt, Jr., J.A. Balcerski, N. Michel,
M.J. Talpe, and D. Yang, Topography of the northern hemisphere of Mercury
from MESSENGER laser altimetry, Science, 336, 217-220, 2012."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ZURBUCHENETAL1998"
REFERENCE_DESC                 = "
Zurbuchen, T.H., G. Gloeckler, J.C. Cain, S.E. Lasley, and W. Shanks,
A low-weight plasma instrument to be used in the inner heliosphere, in
Conference on Missions to the Sun II, edited by C.M. Korenskye,
Proceedings of the Society of Photo-Optical Instrumentation Engineers,
3442, 217- 224, San Diego, CA, July 22-23, 1998."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ZURBUCHENETAL2004"
REFERENCE_DESC                 = "
Zurbuchen, T.H., P. Koehn, L.A. Fisk, T. Gombosi, G. Gloeckler, and K.
Kabin, On the space environment of Mercury, Advances in Space Research,
33, 1884-1889, 2004."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ZURBUCHENETAL2008"
REFERENCE_DESC                 = "
Zurbuchen, T.H., J.M. Raines, G. Gloeckler, S.M. Krimigis, J.A. Slavin, P.L.
Koehn, R.M. Killen, A.L. Sprague, R.L. McNutt, Jr., and S.C. Solomon,
MESSENGER observations of the composition of Mercury's ionized exosphere and
plasma environment, Science, 321, 90-92, 2008."
END_OBJECT                      = REFERENCE

OBJECT                          = REFERENCE
REFERENCE_KEY_ID               = "ZURBUCHENETAL2011"
REFERENCE_DESC                 = "
Zurbuchen, T.H., J.M. Raines, J.A. Slavin, D.J. Gershman, J.A. Gilbert, G.
Gloeckler, B.J. Anderson, D.N. Baker, H. Korth, S.M. Krimigis, M. Sarantos,
D. Schriver, R.L. McNutt, Jr., and S.C. Solomon, MESSENGER observations of
the spatial distribution of planetary ions near Mercury, Science, 333,
1862-1865, 2011."
END_OBJECT                      = REFERENCE