urn:nasa:pds:p10-gtt-cal:data-1day:p10_gtt_daily
1.0
Pioneer 10 GTT Calibrated Daily Ave. Count Rate Data for 1972 - 2002
1.25.0.0
Product_Observational
2009
This file contains 24-hour-averaged count rates
and related parameters from the the Geiger Tube Telescope (GTT) flown
on Pioneer 10. The data were initially provided to NSSDC by the
GTT team at U. Iowa in VMS binary format on magnetic tapes. They
have been converted to ASCII format at GSFC/SPDF.
James Alfred
Van Allen
1
University of Iowa
https://ror.org/036jqmy94
1
2026-03-25
1.0
This is the first product released as part
of the PDS4 bundle. The data themselves are unchanged.
1972-03-04T00:00:00.000Z
2002-03-02T23:59:59.999Z
Science
Calibrated
Heliosphere
Particles
Electrons
Energetic
Heliosphere
Particles
Ions
Energetic
Heliosphere
Particles
Electrons
Cosmic Ray
Heliosphere
Particles
Ions
Cosmic Ray
Pioneer 10
Mission
urn:nasa:pds:context:investigation:mission.pioneer_10
data_to_investigation
Geiger Tube Telescope (GTT)
Instrument
urn:nasa:pds:context:instrument:gtt.p10
is_instrument
Pioneer 10
Host
urn:nasa:pds:context:instrument_host:spacecraft.p10
is_instrument_host
Jupiter
Planet
urn:nasa:pds:context:target:planet.jupiter
data_to_target
Solar Wind
Plasma Stream
urn:nasa:pds:context:target:plasma_stream.solar_wind
data_to_target
Earth-Jupiter Cruise
Jupiter Encounter
Post-Jupiter Cruise
0.06
102
Electrons
Count Rate
0.06
102
Ions
Count Rate
Proton
0.06
102
Electrons
Counts
0.06
102
Ions
Counts
Proton
urn:nasa:pds:p10-gtt-cal:document:1day-data-desc::1.0
data_to_document
p10_gtt_daily.tab
2010-04-07T00:00:00.000Z
12084117
06f99df645ff20265dee3e590b1d4100
This data file is unmodified from the PDS3 version.
0
8491
Carriage-Return Line-Feed
20
8
1423
YEAR
1
3
ASCII_NonNegative_Integer
2
Year of Data (e.g., 72, 73, ...) in Earth Received Time
(ERT). Earth received time (ERT) for the data.
DAY
2
6
ASCII_NonNegative_Integer
3
Day of Data in Earth Received Time (ERT). Earth received
time (ERT) for the data.
BEG_DAY_FRAC
3
10
ASCII_Real
10
Beginning Day Fraction in Earth Received Time (ERT).
Beginning time is the time of the first data point found
in the interval.
END_DAY_FRAC
4
21
ASCII_Real
10
Ending Day Fraction in Earth Received Time (ERT). Ending
time is the time of the last data point in the interval.
SC_ID
5
32
ASCII_NonNegative_Integer
2
Spacecraft ID (10 or 11).
PERIOD_LEN
6
35
ASCII_NonNegative_Integer
4
min
Length of Period in Minutes. Since these are 24-hour
averages, this number will be 1440.
PERIOD_TYPE
7
42
ASCII_NonNegative_Integer
1
Period Type. A number assigned to describe the
accumulation period; for 24-hour averages it will be 5.
NUM_SAMPLES
8
46
ASCII_NonNegative_Integer
1
Number of samples this interval.
12
1
0
47
156
EFF_COUNTS
1
1
ASCII_Real
13
Counts
Effective Counts for each of 12 detectors.
Detector order:
(1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7) C, (8)
D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.
12
1
0
204
156
SUM_RAW_NORM
1
1
ASCII_Real
13
(Sum of Raw Counts) / 0.09375 for each of 12 detectors.
Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6)
ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12)
ABC+ABC.
12
1
0
361
156
COUNT_RATE_AVE
1
1
ASCII_Real
13
Counts/s
Counting Rate Average in Counts/sec for each of 12
detectors.
Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB,
(6) ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12)
ABC+ABC.
12
1
0
518
156
SIGMA
1
1
ASCII_Real
13
Sigma (Standard Deviation) for each of 12 detectors.
Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6)
ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12)
ABC+ABC.
12
1
0
675
156
FOURIER_M
1
1
ASCII_Real
13
M Fourier Coefficient for each of 12 detectors. Used in
the formula F(phi) = M ( 1 + K Cos ( phi - D ) ).
Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7)
C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.
12
1
0
832
156
FOURIER_K
1
1
ASCII_Real
13
K Fourier Coefficient for each of 12 detectors. Used in
the formula F(phi) = M ( 1 + K Cos ( phi - D ) ).
Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7)
C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.
12
1
0
989
156
FOURIER_D
1
1
ASCII_Real
13
D Fourier Coefficient for each of 12 detectors. Used in
the formula F(phi) = M ( 1 + K Cos ( phi - D ) ).
Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7)
C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.
12
1
0
1146
156
SUM_RAW_COUNTS
1
1
ASCII_Real
13
Sum of Raw Counts for each of 12 detectors.
Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7) C, (8)
D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.
NUM_ERRORS
9
1306
ASCII_NonNegative_Integer
1
Number of Errors this Interval.
DAY_FRAC_1950
10
1310
ASCII_Real
8
Day and Day Fraction since 1950.0. This time is
spacecraft event time for the center time of the data
used in the sum.
RADIUS_SC_EARTH
11
1324
ASCII_Real
5
AU
Radius to Spacecraft from Earth in AU.
EARTH_SUN_DIST
12
1333
ASCII_Real
5
AU
Earth-Sun Distance in AU. All positional coordinates are
referred to the equinox/ecliptic of date.
RADIUS_SC_SUN
13
1342
ASCII_Real
5
AU
Radius to Spacecraft from the Sun in AU. All positional
coordinates are referred to the equinox/ecliptic of
date.
CEL_LON_EARTH
14
1349
ASCII_Real
7
deg
Celestial Longitude of Earth (Degrees). Measured in a
reference system using the Sun as the reference body and
the true ecliptic of date as the reference plane.
Longitudes are measured eastward from the line between
the vernal equinox and the Sun. Latitudes are measured
from the plane; northward is positive. All positional
coordinates are referred to the equinox/ecliptic of
date.
CEL_LON_SC
15
1358
ASCII_Real
7
deg
Celestial Longitude of Spacecraft (Degrees). Measured in
a reference system using the Sun as the reference body
and the true ecliptic of date as the reference plane.
Longitudes are measured eastward from the line between
the vernal equinox and the Sun. Latitudes are measured
from the plane; northward is positive. All positional
coordinates are referred to the equinox/ecliptic of
date.
LON_SOL_EQUATOR
16
1367
ASCII_Real
7
deg
Longitude of Solar Equator + 270 (Degrees). Calculated
quantity. Inclination of solar equator to ecliptic
I=7.25 degrees. Longitude of the ascending node of the
solar equator on the ecliptic: Omega=73 degrees+40
minutes+50.25*t seconds, where t is the time in years
reckoned from 1850.0. Reference: Explanatory Supplement
to the Astronomical Ephemeris and the American Ephemeris
and Nautical Almanac, 1961, page 307.
CEL_LAT_EARTH
17
1376
ASCII_Real
13
deg
Celestial Latitude of Earth (Degrees). Measured in a
reference system using the Sun as the reference body and
the true ecliptic of date as the reference plane.
Longitudes are measured eastward from the line between
the vernal equinox and the Sun. Latitudes are measured
from the plane; northward is positive. All positional
coordinates are referred to the equinox/ecliptic of
date.
CEL_LAT_SC
18
1390
ASCII_Real
10
deg
Celestial Latitude of Spacecraft (Degrees). Measured in
a reference system using the Sun as the reference body
and the true ecliptic of date as the reference plane.
Longitudes are measured eastward from the line between
the vernal equinox and the Sun. Latitudes are measured
from the plane; northward is positive. All positional
coordinates are referred to the equinox/ecliptic of
date.
HELIOLAT_SC
19
1401
ASCII_Real
10
deg
Heliographic Latitude of Spacecraft (Degrees).
Calculated quantity. Inclination of solar equator to
ecliptic I=7.25 degrees. Longitude of the ascending node
of the solar equator on the ecliptic: Omega=73
degrees+40 minutes+50.25*t seconds, where t is the time
in years reckoned from 1850.0. Reference: Explanatory
Supplement to the Astronomical Ephemeris and the
American Ephemeris and Nautical Almanac, 1961, page 307.
HELIOLAT_EARTH
20
1412
ASCII_Real
10
deg
Heliographic Latitude of Earth (Degrees). Calculated
quantity. Inclination of solar equator to ecliptic
I=7.25 degrees. Longitude of the ascending node of the
solar equator on the ecliptic: Omega=73 degrees+40
minutes+50.25*t seconds, where t is the time in years
reckoned from 1850.0. Reference: Explanatory Supplement
to the Astronomical Ephemeris and the American Ephemeris
and Nautical Almanac, 1961, page 307.