PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM INSTRUMENT_HOST_NAME = "PHOENIX" INSTRUMENT_NAME = "METEOROLOGY SUITE, PRESSURE & TEMPERATURE" MISSION_PHASE_NAME = "PRIMARY MISSION" OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2009-04-29 NOTE = "PHOENIX MET LIDAR ARCHIVE NOTES ON DATA" END_OBJECT = TEXT END Files with known Data Gaps MS007RMH_00896827901_1145M1 MS020RMH_00897984492_128AM1 MS040RMH_00899760333_1457M1 MS043RMH_00900026931_14CCM1 MS069RMH_00902330763_17D2M1 MS075RMH_00902833089_1887M1 MS141RMH_00908726016_1FC3M1 MS148RMH NOTE: Sol 148 data were collected, but remain on the spacecraft Files collected in RAW MODE (2 sec) NOTE: No pressure corrected product provided. MS074RMA_00902819822_1886M1 MS081RMA_00903433418_1966M1 MS088RMA_00904012273_1A59M1 Incorrect values in release 1 and 2 (MS0001 and MS0002): LOCAL_TRUE_SOLAR_TIME Values for LOCAL_TRUE_SOLAR_TIME (LTST) were incorrectly given values of Local Mean Solar Time (LMST) to mark the commencement of data collection within each data product LBL file. Furthermore, it was discovered that values of LMST employed in planning of Phoenix operations are slightly different to values calculated using algorithms such as Mars24. This is because the mission epoch was set from the expected landing site longitude of 126.65, whereas the actual landing site longitude was 125.75. LMST is thus calculated from 126.65, while LTST from 125.75. Corrections to the MET data archive were calculated from UTC employing the Mars24 algorithm (provided as an Appendix in the updated DPSIS document) and both LTST and LMST start times are now provided. Users should also use caution when comparing times with other Phoenix payloads, as different algorithms may provide differing results for Mars time, while UTC is the standard across all instruments. This change has been applied to Release 3 (MS0003), and files with the version number incremented (MS******_###########_$$$$M1) have correct values. CORRECTED PRESSURE Values for "PRESSURE" in the Corrected Pressure data files (e.g. MS***RMC_###########_$$$$M0) were determined to be incorrect. Values archived in Release 1 and 2 were archived with the uncorrected values shifted temporally, and thus should be discarded. The files now contain the correct "Corrected Pressure" values, with a "-1" flag signifying values that could not be corrected using this algorithm. Both of these changes have been applied to Release 3 (MS0003), and files with the version number incremented (MS***RMC_###########_$$$$M1) have correct values.