urn:nasa:pds:p10-gtt-cal:data-1hour:p10gt_hr1987 1.0 1.25.0.0 Product_Observational 2009 This file contains hourly averages of selected interplanetary counting rates computed by NSSDC staff from 15-min data from the Pioneer 10 Geiger Tube Telescope (GTT) experiment. James Alfred Van Allen 1 University of Iowa https://ror.org/036jqmy94 1 2026-03-18 1.0 This is the first product released as part of the PDS4 bundle. The data themselves are unchanged. 1987-01-01T00:00:00.000Z 1987-01-01T23:59:59.999Z 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 Solar Wind Plasma Stream urn:nasa:pds:context:target:plasma_stream.solar_wind data_to_target Post-Jupiter Cruise 0.06 102 Electrons Count Rate 0.06 102 Ions Count Rate Proton urn:nasa:pds:p10-gtt-cal:document:1hour-data-desc::1.0 data_to_document p10gt_hr1987.tab 2009-02-26T00:00:00.000Z 735840 104c80ca7e6db5b67d3a71d28f50cbfd This data file is unmodified from the PDS3 version. 0 8760 Carriage-Return Line-Feed 13 0 84 Year 1 1 ASCII_Date_DOY 4 Date of spacecraft event time is given in the format of yyyy (SCET). Day of year 2 6 ASCII_NonNegative_Integer 3 Day of spacecraft event time within a given year (SCET). Hour of S/C event time 3 10 ASCII_NonNegative_Integer 2 hr Hour of spacecraft event time within a given day. Minute of S/C event time 4 13 ASCII_NonNegative_Integer 2 Minute of spacecraft event time within a given hour. Second of S/C event time 5 16 ASCII_NonNegative_Integer 2 s Second of spacecraft event time within a given minute. NTSAMP 6 19 ASCII_Real 5 Data Samples Normalized to 2048 BPS Telemetry Rate. 99999 RATGG 7 25 ASCII_Real 8 G+G Counting Rate (Electrons > 0.06 MeV, Protons > 25 MeV). 9999.999 RATA 8 34 ASCII_Real 8 A Channel Counting Rate (Electrons > 5 MeV, Protons > 30 MeV). 9999.999 RATB 9 43 ASCII_Real 8 B Channel Counting Rate (Electrons > 0.55 MeV, Protons > 6.6 MeV). 9999.999 RATC 10 52 ASCII_Real 6 C Channel Counting Rate (Electrons > 21 MeV, Protons > 80 MeV). 99.999 RATD 11 59 ASCII_Real 6 D Channel Counting Rate (Electrons > 31 MeV, Protons > 80 MeV). 99.999 RSCS 12 66 ASCII_Real 8 AU Sun-Spacecraft Distance (AU). 999.9999 HLATSC 13 75 ASCII_Real 8 deg Heliographic Latitude of Spacecraft (Degrees). 999.9999