urn:nasa:pds:odyssey_grs_edr:data_science_raw:pulser_spectra_20040407 1.0 1.19.0.0 Product_Observational 2026-07-01 1.0 Migration to PDS4 2004-04-07T00:00:04.621Z 2004-04-07T23:59:58.333Z MARS Odyssey Mission urn:nasa:pds:context:investigation:mission.2001_mars_odyssey data_to_investigation 2001 MARS ODYSSEY Host urn:nasa:pds:context:instrument_host:spacecraft.ody is_instrument_host GAMMA RAY SPECTROMETER Instrument urn:nasa:pds:context:instrument:ody.grs is_instrument Mars Planet urn:nasa:pds:context:target:planet.mars data_to_target 0010 PULSER_SPECTRA 1.0 MAPPING 196035421285 196057538014 pulser_spectra_20040407.dat pulser_spectra_data_table 2004-11-17T21:16:43.328 0 4373 Pulser spectrum and associated data. 12 1 1570 SC_RECV_TIME 1 1 UnsignedMSB8 8 The time this packet was received by the spacecraft, in ticks (256 per second). SC_EV_TIME 2 9 UnsignedMSB8 8 Spacecraft time at the middle of the pixel, in ticks. CEB_TIME 3 17 UnsignedMSB8 8 ms Clock count from the GRS Common Electronics Box at the beginning of the pixel. UTC 4 25 ASCII_String 23 SC_EV_TIME converted to UTC, stored as yyyy-mm-ddThh:mm:ss.sss. GRS_PIXEL_NUMBER 5 48 UnsignedMSB4 4 Sequential counter of accumulation intervals, starts with one as grs orbit begins. Special case on reboot when the the CEB is in orbit 0, pixel 0. 0 GRS_ORBIT_NUMBER 6 52 UnsignedMSB4 4 Sequential counter of orbits from GRS CEB boot. 0 ODY_ORBIT_NUMBER 7 56 UnsignedMSB4 4 Orbit number common to all instruments aboard Odyssey. This orbit number is incremented by one as the spacecraft passes through the orbital descending node. 0 BAD_CODE 8 60 UnsignedMSB4 4 If non-zero, the data has been flagged bad. Definitions in bad_code.txt. COUNTER 9 64 UnsignedByte 1 The packet counter from the pulser packet, values from 0 to 15. FIRST_CHAN 10 65 UnsignedMSB2 2 Starting channel of first 500-channel wide spectrum. MID_CHAN 11 67 UnsignedMSB2 2 Starting channel of second 500-channel wide spectrum. LAST_CHAN 12 69 UnsignedMSB2 2 Starting channel of third 500-channel wide spectrum. 1 1500 1 0 Pulser Spectrum. 71 1500 SPECTRUM 1 1 UnsignedByte 1 pulser_spectra_20040407.lbl 0 PDS3 PDS3 label Carriage-Return Line-Feed