urn:nasa:pds:mess_grs_raw:data_edr:grs_swc2015114zzz_tab 1.0 1.10.1.0 Product_Observational 2018-06-08 1.0 PDS4 migrated product 2015-04-24T03:43:49.000Z 2015-04-24T22:14:28.000Z MESSENGER Mission urn:nasa:pds:context:investigation:mission.messenger data_to_investigation MESSENGER Spacecraft urn:nasa:pds:context:instrument_host:spacecraft.mess is_instrument_host Gamma Ray Spectrometer Instrument urn:nasa:pds:context:instrument:grs.mess is_instrument Mercury Planet urn:nasa:pds:context:target:planet.mercury data_to_target Mercury Orbit Year 5 2/072171019 2/072237658 grs_software_rate_counters pipe-grs2edr 1.1 grs_swc2015114zzz.tab 2015-04-25T09:58:47Z 0 175 This table contains one set of software rate counter telemetry information gathered by the MESSENGER Gamma-Ray Spectrometer (GRS). A set is defined as all data with MET timestamps corresponding to a given Earth day. Additional details are contained in the EDR SIS document. Carriage-Return Line-Feed 30 0 355 met 1 1 ASCII_Integer 10 Mission elapsed time in seconds. orbit_number 2 13 ASCII_Integer 5 Orbit number is a unique identifier for a given orbit of the MESSENGER spacecraft around Mercury. Orbit number is defined as starting at apoherm and is calculated using the MET value and the appropriate SPICE kernels. Orbit numbering does not start until MESSENGER performs the Mercury orbit insertion. Until that time the value for orbit number is 0. hpge_raw_events 3 20 ASCII_Integer 10 Counter of HPGe Raw events. shield_raw_events 4 32 ASCII_Integer 10 Counter for SHIELD raw events. accumulated_dead_time 5 44 ASCII_Integer 10 Counter for accumulated dead time. hpge_charge_resets 6 56 ASCII_Integer 10 Number of HPGe charge resets. shield_charge_resets 7 68 ASCII_Integer 10 Number of SHIELD charge resets. accumulation_time 8 80 ASCII_Integer 10 Accumulation time for software counters. all_events 9 92 ASCII_Integer 10 All events counter. all_ch0_ch1_events 10 104 ASCII_Integer 10 All channel 0 and channel 1 events. Excludes inverted Channel 0, Pileups, and Pulser events. all_ch0_events 11 116 ASCII_Integer 10 All single Channel 0 events - either singlet or fails crossing time criterion. all_ch1_events 12 128 ASCII_Integer 10 All single Channel 1 events - either singlet or fails crossing time criterion. invalid_single_ch0 13 140 ASCII_Integer 10 Single channel 0 out-of-range events. invalid_single_ch1 14 152 ASCII_Integer 10 Single channel 1 out-of-range events. invalid_coincident_ch0 15 164 ASCII_Integer 10 Channel 0 out-of-range coincidence events. invalid_coincident_ch1 16 176 ASCII_Integer 10 Channel 1 out-of-range coincidence events. valid_single_ch0 17 188 ASCII_Integer 10 Single channel 0 valid events only. valid_coincident_ch0 18 200 ASCII_Integer 10 Coincidence channel 0 valid events. valid_single_ch1 19 212 ASCII_Integer 10 Single channel 1 valid events only. valid_coincident_ch1 20 224 ASCII_Integer 10 Coincidence channel 1 valid events. all_valid_coincident 21 236 ASCII_Integer 10 All valid coincidence events - both Channel 0 and Channel 1 valid. inverted_ch0 22 248 ASCII_Integer 10 Channel 0 events flagged 'inverted' by the hardware. ch0_pileup_reject 23 260 ASCII_Integer 10 Channel 0 pileup rejected events. Only if pileup rejection is enabled. fifo_full_count 24 272 ASCII_Integer 10 Hardware FIFO full flag tested for all events. Number of events for which First-In-First-Out buffer is full. pulser_energy_sum 25 284 ASCII_Integer 10 Pulser energy sum. Summation of (Pulser Energy - Offset). pulser_energy_sum2 26 296 ASCII_Integer 10 Pulser energy sum squared. Summation of square of (Pulser Energy - Offset). pulser_events 27 308 ASCII_Integer 10 Number of valid pulser events. invalid_pulser_events 28 320 ASCII_Integer 10 Out-of-range pulser events. neutron_events 29 332 ASCII_Integer 10 Coincidence events that meet neutron criterion. pulser_offset 30 344 ASCII_Integer 10 Pulser energy offset used to form PULSER_ENERGY_SUM and PULSER_ENERGY_SUM2. grs_swc2015114zzz.lbl 0 PDS3 Original PDS3 label Carriage-Return Line-Feed