urn:nasa:pds:mess_ns_raw:data_edr:ns_cad2012144zzz_tab 1.0 1.10.1.0 Product_Observational 2018-06-08 1.0 PDS4 migrated product 2012-05-23T00:00:07.000Z 2012-05-23T23:59:40.000Z 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 Neutron Spectrometer Instrument urn:nasa:pds:context:instrument:ns.mess is_instrument Mercury Planet urn:nasa:pds:context:target:planet.mercury data_to_target Mercury Orbit Year 2 1/246218673 1/246305046 ns_calibration_diagnostic pipe-ns2edr 1.0 ns_cad2012144zzz.tab 2012-05-24T02:43:28Z 0 191520 This table contains one set of calibration and diagnostic data collected from the MESSENGER Neutron Spectrometer (NS). A set is defined as all data with timestamps corresponding to a given Earth day. Additional details are contained in the EDR SIS document. Carriage-Return Line-Feed 11 0 80 met 1 1 ASCII_Integer 12 Time tag of each event recorded in the Calibration/Diagnostic data packet. All events recorded in a given packet will have the same MET time tag value. orbit_number 2 15 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. sequence_ct 3 22 ASCII_Integer 5 Continuous sequence count for each ApID. length 4 29 ASCII_Integer 5 Number of bytes [packet secondary header + packet data field] - 1. The number of events (N) collected at a given MET is determined by N = (Length-3)/12. bpp_energy 5 36 ASCII_Integer 5 Borated Plastic (BP) detector prompt pulse energy. bps_energy 6 43 ASCII_Integer 5 BP detector delayed secondary pulse energy. ttsp 7 50 ASCII_Integer 3 Time from first to second pulse for valid BP events. data_quality 8 55 ASCII_Integer 3 Data quality indicator flags (16 bits, one flag/bit). Indicate whether event is in energy range, if pileup is detected, etc. lg1_energy 9 60 ASCII_Integer 5 LG1 energy. lg2_energy 10 67 ASCII_Integer 5 LG2 energy. status_register 11 74 ASCII_Integer 5 Status register. Contains flags allowing determination of event type (16 bits, one flag/bit). ns_cad2012144zzz.lbl 0 PDS3 Original PDS3 label Carriage-Return Line-Feed