urn:nasa:pds:lro-crater:data-raw-pri:crat_l0_pri_2026072 1.0 1.18.0.0 Product_Observational Spence, Harlan E. 2025 Lunar Reconnaissance Orbiter LRO Cosmic Ray Telescope for the Effects of Radiation CRaTER Raw (Level 0) primary science data from CRaTER for year 2026 day 072 (2026-03-13). These data have been reformatted from the PDS3 data file CRAT_L0_PRI_2026072_V02.LBL during the process of migrating to PDS4. Bit fields in the original file have been converted to integer values. Field values should be unchanged. 2026-06-14 1.0 This product, CRAT_L0_PRI_2026072_V02.xml, is a reformatted version of the product CRAT_L0_PRI_2026072_V02.LBL, which was originally released as part of the PDS3 EDR dataset. The data values are unchanged. This version of the data and metadata are the first version to be migrated to PDS4 so it carries a PDS4 version_id of 1.0. Instrument Serial Number: 2 2026-03-13T00:00:00.78Z 2026-03-13T23:59:59.78Z Science Raw Magnetosphere Heliosphere Particles Ions Cosmic Ray LRO Mission urn:nasa:pds:context:investigation:mission.lunar_reconnaissance_orbiter data_to_investigation CRaTER Instrument urn:nasa:pds:context:instrument:lro.crat is_instrument LRO Host urn:nasa:pds:context:instrument_host:spacecraft.lro is_instrument_host Moon Satellite urn:nasa:pds:context:target:satellite.earth.moon data_to_target SIXTH EXTENDED SCIENCE MISSION 0795052800.75 0795139199.75 1 Ions Pulse Height Analysis Ions Energy Spectra urn:nasa:pds:lro-crater:data-raw-sec:crat_l0_sec_2026072::1.0 data_to_raw_product urn:nasa:pds:lro-crater:data-raw-hk:crat_l0_hk_2026072::1.0 data_to_raw_product The referenced product contains instrument engineering data associated with this product. urn:nasa:pds:lro-crater:document:data-raw-pri-desc data_to_document LRO-L-CRAT-2-EDR-RAWDATA-V1.0:CRAT_L0_PRI_2026072_V02:CRAT_L0_PRI_2026072_V02.DAT data_to_raw_source_product 10.17189/1519727 NASA Planetary Data System This is the first version of this product converted to PDS4. The DOI provided references the PDS3 source data set. CRAT_L0_PRI_2026072_V02.DAT 2026-03-16T19:32:56.000Z 54335952 d5371f4d7eaa7009e5fcf55671b22e57 This data file has been reformatted from the PDS3 version. Header Record 0 1 Header for data file, consisting of 1 record. The first three bytes are spare and not described by a Field_Binary object. 6 0 18 FileID 1 4 UnsignedByte 1 File Identifier (primary science = 200, housekeeping = 201, secondary science = 202). 202 200 Reserved 2 5 UnsignedMSB4 4 Spare. StartTimeSec 3 9 UnsignedMSB4 4 s Spacecraft Time of First Packet in File (elapsed seconds from epoch 2001-01-01T00:00:00.000 UTC) 2147483647 0 StartTimeSubsec 4 13 UnsignedByte 1 Counts Spacecraft Time of First Packet in File--Fractional Seconds. (Use only the 4 most significant bits (MSB) to compute an unsigned integer corresponding to the number of 1/16th second increments. The 4 remaining bits are undefined.) 2.4E+2 0 StopTimeSec 5 14 UnsignedMSB4 4 s Spacecraft Time of Last Packet in File (elapsed seconds from epoch 2001-01-01T00:00:00.000 UTC). 2147483647 0 StopTimeSubsec 6 18 UnsignedByte 1 Counts Spacecraft Time of Last Packet in File--Fractional Seconds. (Use only the 4 most significant bits (MSB) to compute an unsigned integer corresponding to the number of 1/16th second increments. The 4 remaining bits are undefined.) 255 0 Data Table 18 91474 Table containing the measured data. 12 1 594 CCSDS Version Number 1 1 UnsignedByte 1 Part of CCSDS Primary and Secondary Headers, ApId = 120. PacketType 2 2 UnsignedByte 1 Packet Type. Part of CCSDS Primary and Secondary Headers, ApId = 120. SecHdrFlag 3 3 UnsignedByte 1 Secondary Header Flag (1 = secondary header follows). Part of CCSDS Primary and Secondary Headers, ApId = 120. APID 4 4 UnsignedMSB2 2 Application Process ID (120 = primary science; 121 = secondary science; 122 = housekeeping). Part of CCSDS Primary and Secondary Headers, ApId = 120. 6.552E+4 0 SegFlag 5 6 UnsignedByte 1 Packet Segmentation Flag (3 = no segmentation). Part of CCSDS Primary and Secondary Headers, ApId = 120. SeqCount 6 7 UnsignedMSB2 2 Sources Sequence Count (separate for each ApId). Part of CCSDS Primary and Secondary Headers, ApId = 120. 65535 0 PacketLength 7 9 UnsignedMSB2 2 Packet Length (number of bytes following primary header - 1). Part of CCSDS Primary and Secondary Headers, ApId = 120. This is the original CCSDS packet length, not the reformatted record length. 65535 0 Time 8 11 UnsignedMSB4 4 s Spacecraft Time (elapsed seconds from epoch 2001-01-01T00:00:00.000 UTC). Part of CCSDS Primary and Secondary Headers, ApId = 120. 2147483647 0 FracTime 9 15 UnsignedByte 1 Counts Spacecraft Time--Fractional Seconds (number of 1/16 second increments). Part of CCSDS Primary and Secondary Headers, ApId = 120. 255 0 TestFlag 10 16 UnsignedByte 1 Test Mode Flag (1 = test enabled). Part of CCSDS Primary and Secondary Headers, ApId = 120. 255 0 OneHertz 11 17 UnsignedByte 1 External 1-Hz Time Sync Pulse Flag (1 = not received). Part of CCSDS Primary and Secondary Headers, ApId = 120. 255 0 SerialNumber 12 18 UnsignedByte 1 Instrument Serial Number. Part of CCSDS Primary and Secondary Headers, ApID = 120. 255 0 PHA Output 1 48 0 1 PHA outputs from the detectors during 1 second of time. This group covers 48 detection events. For each such event there are 6 fields, which contain PHA outputs for 6 detectors. If there are fewer than 48 detection events during the 1 second, the rest of the fields after the events will have values of 0. 19 576 6 1 0 PHA outputs for each of the 6 detectors. 1 12 EventAmp 1 1 UnsignedMSB2 2 Detector PHA Output for Single Event. 65535 0