OBJECT = COLUMN NAME = MET COLUMN_NUMBER = 1 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1 DESCRIPTION = "Time tag in seconds of the start of the associated Reporting/Accumulation period." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ORBIT_NUMBER COLUMN_NUMBER = 2 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 5 DESCRIPTION = "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." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ACTUAL_ACCUM COLUMN_NUMBER = 3 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 7 DESCRIPTION = "Actual accumulation period for software counters and energy histograms." END_OBJECT = COLUMN OBJECT = COLUMN NAME = GCR_MODE COLUMN_NUMBER = 4 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 11 DESCRIPTION = "Galactic Cosmic Ray (GCR) Coincidence mode. =1 Doubles, =2 Triples, =3 Either." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SENSOR_CFG_CHANGED COLUMN_NUMBER = 5 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 13 DESCRIPTION = "Sensor Configuration Changed Flag. =0 config unchanged, =1 config changed." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG_SAFING COLUMN_NUMBER = 6 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 15 DESCRIPTION = "Maximum Lithium Glass (LG) safing level reached during current reporting period. =0 nominal, =1 seeking, =2 level1_rampdown, =3 level1_waiting, =4 level1_seeking, =5 level2_safing. " END_OBJECT = COLUMN OBJECT = COLUMN NAME = BP_SAFING COLUMN_NUMBER = 7 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 17 DESCRIPTION = "Maximum safing level reached during current reporting period for the Borrated Plastic (BP) sensor. =0 nominal, =1 seeking, =2 level1_rampdown, =3 level1_waiting, =4 level1_seeking, =5 level2_safing " END_OBJECT = COLUMN OBJECT = COLUMN NAME = LOG_COMPRESSION COLUMN_NUMBER = 8 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 19 DESCRIPTION = "Identifies when the log compression data mode has been enabled. The NS flight software uses 32-bit to 16-bit log compression on software counters when the log compression data mode is enabled. See the NS Flight Software document for details on the log compression algorithm. =0 no log compression. =1 log compression enabled. " END_OBJECT = COLUMN OBJECT = COLUMN NAME = SENSOR_TEMP COLUMN_NUMBER = 9 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 21 DESCRIPTION = "Sensor Temperature, External Channel 4 (LVPS)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = TEMP_MONITOR COLUMN_NUMBER = 10 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 23 DESCRIPTION = "LVPS Temperature monitor." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG1_SCALE COLUMN_NUMBER = 11 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 25 DESCRIPTION = "LG1 singles spectrum scale." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG2_SCALE COLUMN_NUMBER = 12 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 27 DESCRIPTION = "LG2 singles spectrum scale." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BP_SCALE COLUMN_NUMBER = 13 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 29 DESCRIPTION = "BP singles spectrum scale." END_OBJECT = COLUMN OBJECT = COLUMN NAME = TC_SCALE COLUMN_NUMBER = 14 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 31 DESCRIPTION = "Time-correlated spectra scale." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SINGLES_LG1 COLUMN_NUMBER = 15 BYTES = 128 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 33 ITEMS = 64 ITEM_BYTES = 2 DESCRIPTION = "Spectrum is a 64 channel histogram of event energies that arrived as a single event with no time correlation to the other sensors. LG1 is the Lithium Glass 1 sensor." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SINGLES_LG2 COLUMN_NUMBER = 16 BYTES = 128 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 161 ITEMS = 64 ITEM_BYTES = 2 DESCRIPTION = "Spectrum is a 64 channel histogram of event energies that arrived as a single event with no time correlation to the other sensors. LG2 is the Lithium Glass 2 sensor." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SINGLES_BP_SPECTRA COLUMN_NUMBER = 17 BYTES = 128 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 289 ITEMS = 64 ITEM_BYTES = 2 DESCRIPTION = "BP is the Borated Plastic sensor. Spectrum is a 64 channel histogram of event energies that arrived as a solo event with respect to the other sensors." END_OBJECT = COLUMN OBJECT = COLUMN NAME = TC_EARLY COLUMN_NUMBER = 18 BYTES = 512 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 417 ITEMS = 256 ITEM_BYTES = 2 DESCRIPTION = "The time-correlated early spectrum is a histogram of prompt BP events that had a delayed BP event occurring during the early capture window, as defined by commandable software parameters provided in columns 83 and 84 of the NS Status EDR, and no additional events in the event set. " END_OBJECT = COLUMN OBJECT = COLUMN NAME = TC_LATE COLUMN_NUMBER = 19 BYTES = 512 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 929 ITEMS = 256 ITEM_BYTES = 2 DESCRIPTION = "The time-correlated late spectrum is a histogram of prompt BP events that had a delayed BP event occurring during the late capture window, as defined by commandable software parameters provided in columns 85 and 86 of the NS Status EDR, and no additional events in the event set. " END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG1_RAW_EVENTS COLUMN_NUMBER = 20 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1441 DESCRIPTION = "LG1 raw event software counter." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG2_RAW_EVENTS COLUMN_NUMBER = 21 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1445 DESCRIPTION = "LG2 raw event software counter." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BP_RAW_EVENTS COLUMN_NUMBER = 22 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1449 DESCRIPTION = "BP raw event software counter." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SW_TOTAL_EVENTS COLUMN_NUMBER = 23 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1453 DESCRIPTION = "Total events processed by software in the current accumulation period." END_OBJECT = COLUMN OBJECT = COLUMN NAME = DEAD_TIME COLUMN_NUMBER = 24 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1457 DESCRIPTION = "Dead time software counter. Units are in microseconds/16. Multiply by 16 to get back to microseconds." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG1_RESET COLUMN_NUMBER = 25 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1461 DESCRIPTION = "LG1 charge reset software counter." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG2_RESET COLUMN_NUMBER = 26 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1465 DESCRIPTION = "LG2 charge reset software counter." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BP_RESET COLUMN_NUMBER = 27 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1469 DESCRIPTION = "BP charge reset software counter." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BPP_LGXS COLUMN_NUMBER = 28 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1473 DESCRIPTION = "Software counter for prompt pulse in BP detector with delayed secondary pulse in LGx detector (x=1 or 2)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG1_OVER_RANGE COLUMN_NUMBER = 29 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1477 DESCRIPTION = "LG1 prompt over range software counter (pulse height larger than maximum specified)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG2_OVER_RANGE COLUMN_NUMBER = 30 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1481 DESCRIPTION = "LG2 prompt over range software counter (pulse height larger than maximum specified)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BP_OVER_RANGE COLUMN_NUMBER = 31 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1485 DESCRIPTION = "BP prompt over range software counter (pulse height larger than maximum specified)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = VALID_TC_EVENT COLUMN_NUMBER = 32 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1489 DESCRIPTION = "Time-correlated software counter: non-coincidence and not over range events." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG1_BPP_COIN COLUMN_NUMBER = 33 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1493 DESCRIPTION = "LG1/BPP coincidence event software counter." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG2_BPP_COIN COLUMN_NUMBER = 34 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1497 DESCRIPTION = "LG2/BPP coincidence event software counter." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LG1_BPP_LG2_COIN COLUMN_NUMBER = 35 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1501 DESCRIPTION = "LG1/BPP/LG2 coincidence event software counter." END_OBJECT = COLUMN OBJECT = COLUMN NAME = TC_EARLY_COUNTER COLUMN_NUMBER = 36 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1505 DESCRIPTION = "Summation of all channels of early time-correlated spectra." END_OBJECT = COLUMN OBJECT = COLUMN NAME = TC_LATE_COUNTER COLUMN_NUMBER = 37 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1509 DESCRIPTION = "Summation of all channels of late time-correlated spectra." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EVENT_MODE_DATA_LEN COLUMN_NUMBER = 38 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1513 DESCRIPTION = "Event mode data length. A value greater than zero indicates that events were observed by the instrument. A corresponding NS Full Science Events EDR will archive the event data." END_OBJECT = COLUMN