Plasma Instrumentation (PLS) Galileo Pre-Jupiter Calibrated readme.txt ============================================================================= Brief Bundle Description ============================================================================= This bundle includes a listing of particle energy spectra from the Galileo Plasma Instrument (PLS) during Ida, Gaspra, Earth and Venus Encounters. Detector reponses from ion detetors 2P, 4P, and 6P, and from electron detector 4E are available through the PDS as separate files. The energy resolution, angular fields of view, and nominal geometric factors for the detectors are specified in the Instrument Description file. Most data are stored in ASCII tables although some binary data may also be included. All files give time values in Spacecraft Event Time (SCET). Some files may give an additional time column that contains the Earth Received Time (ERT) in addition to the SCET. Users of these data are encouraged to acknowledge both the PDS and the principal investigators of the instruments whose data is used in analysis in all publications. These data were originally archived in the following PDS3 data sets: GO-E-PLS-4-SUMM-EARTH1-ET-V1.0 (https://doi.org/10.17189/1519646), GO-E-PLS-4-SUMM-EARTH2-ET-V1.0 (https://doi.org/10.17189/1519647), GO-A-PLS-4-SUMM-GET-V1.0 (https://doi.org/10.17189/1519622), GO-A-PLS-4-SUMM-IET-V1.0 (https://doi.org/10.17189/1519623), GO-V-PLS-4-SUMM-VET-V1.0 (https://doi.org/10.17189/1519700). ============================================================================= Mission Facts ============================================================================= The Galileo spacecraft and some science instruments were reprogrammed after arrival at Jupiter so that data acquisition and downlink could be achieved at the low bit rates associated with the mission after the high gain antenna (HGA) anomaly. New software was telemetered to the spacecraft in early May 1996 in a period known as the 'Inflight Load' or IFL. The mission prior to the IFL is known as the Phase 1 mission. After the IFL the mission is referred to as the Phase 2 mission. In Phase 1 raw data were provided to the instrument teams in Experiment Data Record (EDR) format. In Phase 2, the whole telemetry stream and ground data system were changed. The raw data were 'packetized' and delivered electronically as packet files or instrument packet files (IPF). The difference between a packet file and an IPF is a single 44 byte header called an SFDU. The Io data stored on this bundle were acquired during Phase 1 and downlinked after the IFL by use of the new capabilities of the Phase 2 flight software. As such, they are a hybrid form of data that were acquired by using flight software that may differ from other files of the same raw data format. This is primarily of concern when instrument reprogramming has resulted in a change in the contents of the raw data (i.e. MAG). The project defined orbits according to spacecraft command load boundaries rather than the normal convention of apoapsis to apoapsis. The navigation team did not always adhere to this convention, causing some confusion. The PDS has organized the data and data delivery schedules around the project defined orbit boundaries. The following tables contain information about the orbital tour and satellite encounters: --------------------------------------------------------------------- Galileo Orbit Information --------------------------------------------------------------------- Orbit Orbit <--- Periapsis Info ----> <-- Apoapsis Info --> Name Start Periapsis Range Local Apoapsis Range Local Date Date/Time Time Date Time --------------------------------------------------------------------- Jupiter 0 95-12-03 95-12-07 21:54 4.00 16:21 96-03-29 267.7 03:39 Ganymede 1 96-06-23 96-06-28 00:31 11.03 15:36 96-08-09 125.3 03:24 Ganymede 2 96-09-01 96-09-07 13:38 10.65 15:22 96-10-07 113.0 03:12 Callisto 3 96-11-02 96-11-06 13:31 9.21 15:34 96-11-27 89.1 03:28 Europa 4 96-12-15 96-12-19 03:22 9.16 15:21 97-01-04 72.1 03:00 Jupiter 5* 97-01-15 97-01-20 00:26 9.05 14:54 97-02-04 72.1 02:48 Europa 6 97-02-16 97-02-20 20:55 9.12 14:28 97-03-14 89.2 02:20 Ganymede 7 97-03-30 97-04-04 11:03 9.12 14:14 97-04-21 75.9 01:56 Ganymede 8 97-05-04 97-05-08 11:42 9.27 13:29 97-06-02 100.2 01:21 Callisto 9 97-06-22 97-06-27 11:52 10.77 12:35 97-08-08 143.0 00:21 Callisto 10 97-09-14 97-09-18 23:10 9.17 12:44 97-10-13 98.9 00:36 Europa 11 97-11-02 97-11-06 23:02 9.03 12:36 97-11-26 84.1 00:29 Europa 12 97-12-15 97-12-16 06:35 8.80 12:29 97-12-20 46.6 00:37 Jupiter 13* 98-02-09 98-02-10 23:09 8.85 12:33 98-03-06 95.2 00:25 Europa 14 98-03-28 98-03-29 07:59 8.83 12:17 98-04-30 199.7 00:16 Europa 15 98-05-30 98-06-01 02:34 8.85 12:12 98-06-26 100.4 00:03 Europa 16 98-07-20 98-07-20 17:18 9.93 11:54 98-08-23 124.4 23:51 Europa 17 98-09-25 98-09-26 08:26 8.91 11:44 98-10-24 110.4 23:34 Europa 18 98-11-21 98-11-22 03:57 9.23 11:24 98-12-27 129.0 23:17 Europa 19 99-01-31 99-02-01 02:38 9.24 10:56 99-03-18 154.3 22:40 Callisto 20 99-05-02 99-05-03 17:00 9.37 10:24 99-06-02 114.5 21:46 Callisto 21 99-06-29 99-07-02 05:04 7.27 10:04 99-07-22 89.0 21:57 Callisto 22 99-08-11 99-08-12 10:58 7.32 09:50 99-08-29 77.1 21:23 Callisto 23 99-09-13 99-09-14 19:57 6.55 09:17 99-09-27 65.7 20:46 Io 24 99-10-10 99-10-11 03:31 5.68 08:41 99-11-01 97.7 20:47 Io 25 99-11-25 99-11-26 23:30 5.94 08:39 99-12-15 87.2 20:28 Europa 26 00-01-01 00-01-04 03:33 5.78 08:14 00-01-28 102.7 20:05 Io 27 00-02-20 00-02-22 12:30 5.85 07:56 00-04-06 154.4 19:55 Ganymede 28 00-05-17 00-05-21 04:52 6.68 07:18 00-09-08 289.9 18:37 Ganymede 29 00-12-27 00-12-29 03:26 7.49 06:03 01-03-11 216.3 17:37 Callisto 30 01-05-07 01-05-23 17:33 7.28 05:11 01-06-29 136.8 16:27 Io 31 01-08-04 01-08-06 04:52 5.93 04:14 01-09-10 132.2 16:05 Io 32 01-10-14 01-10-15 23:56 5.78 03:53 01-12-01 160.7 15:39 Io 33 02-01-16 02-01-17 16:23 5.54 03:13 02-06-13 348.1 14:21 Amalthea 34 02-11-04 02-11-05 07:23 1.99 01:40 03-04-14 336.7 12:49 Jupiter 35 03-09-21 03-09-21 18: 1.00 * Solar Conjunction - no data from this orbit ** Rj = 71492 km ------------------------------------------------------------ Satellite Flyby Characteristics* ------------------------------------------------------------ Satellite Planetocentric Coords Range Lat E Lon Orb Moon C/A Time (Rm**) (deg) (deg) Note ------------------------------------------------------------ 0 IO 95-12-07 17:45:58 1.50 -9.6 258.9 W 24 IO 99-10-11 04:33:03 1.34 4.5 135.9 U 27 IO 00-02-22 13:46:41 1.11 18.5 157.4 U 31 IO 01-08-06 04:59:21 1.11 77.5 187.7 P 32 IO 01-10-16 01:23:21 1.10 -78.5 135.3 P 33 IO 02-01-17 14:08:28 1.06 -43.5 41.8 F 4 EUR 96-12-19 06:52:58 1.45 -1.7 322.4 F 6 EUR 97-02-20 17:06:10 1.38 -17.0 34.7 F 11 EUR 97-11-06 20:31:44 2.31 25.7 218.7 F 12 EUR 97-12-16 12:03:20 1.13 -8.7 134.4 U 14 EUR 98-03-29 13:21:05 2.06 12.2 131.2 U 15 EUR 98-05-31 21:12:57 2.62 15.0 225.4 W 19 EUR 99-02-01 02:19:50 1.93 30.5 28.1 U 26 EUR 00-01-03 17:59:43 1.22 -47.1 83.4 U 1 GAN 96-06-27 06:29:07 1.32 30.4 246.7 W 2 GAN 96-09-06 18:59:34 1.10 79.3 236.4 P 7 GAN 97-04-05 07:09:58 2.18 55.8 270.4 W 8 GAN 97-05-07 15:56:10 1.61 28.3 84.8 U 28 GAN 00-05-20 10:10:10 1.31 -19.0 92.4 U 29 GAN 00-12-28 08:25:27 1.89 62.2 269.0 P 3 CALL 96-11-04 13:34:28 1.47 13.2 282.3 W 9 CALL 97-06-25 13:47:50 1.17 2.0 101.0 U 10 CALL 97-09-17 00:18:55 1.22 4.6 281.3 W 30 CALL 01-05-25 11:23:58 1.06 13.6 254.6 W 34 AMA 02-11-05 06:18:40 2.89 -47.7 74.8 U * Satellite encounters with recorded data only J2000 reference, body fixed spherical coordinates. ** Moon Rm (km) ======================= Amalthea 86.2 Io 1818 Europa 1560 Ganymede 2634 Callisto 2409 Notes: Negative latitudes are southern hemisphere, U = upstream F = flank W = wake P = polar =========================================================================== Contacts =========================================================================== For questions or problems regarding this archive, please contact the PDS/PPI PDS operator: Email pds_operator@igpp.ucla.edu For questions regarding PDS Standards or other archives available from the PDS, please contact PDS Operator at the PDS Central Node (at JPL): Email pds_operator@jpl.nasa.gov The PDS and the Planetary Plasma Interactions (PPI) Node in particular, assume no legal liability for errors on this bundle. All users are encouraged to verify the correctness of the data prior to submitting any publications or other work based on these data. Errors on this bundle should be reported back to the PPI Node of the PDS through the reporting procedures described above.