PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2007-12-15 NOTE = "Explanation of labels for MESSENGER SPICE data files" END_OBJECT = TEXT END Example label ============= PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM RECORD_BYTES = "N/A" ^SPICE_KERNEL = "messenger_402.tsc" MISSION_NAME = MESSENGER SPACECRAFT_NAME = MESSENGER DATA_SET_ID = "MESS-E/V/H-SPICE-6-V1.0" KERNEL_TYPE_ID = SCLK PRODUCT_ID = "messenger_402.tsc" PRODUCT_CREATION_TIME = 2007-11-07T16:31:38 PRODUCER_ID = JHUAPL MISSION_PHASE_NAME = "N/A" PRODUCT_VERSION_TYPE = ACTUAL PLATFORM_OR_MOUNTING_NAME = "N/A" START_TIME = "N/A" STOP_TIME = "N/A" SPACECRAFT_CLOCK_START_COUNT = "N/A" SPACECRAFT_CLOCK_STOP_COUNT = "N/A" TARGET_NAME = { EARTH, VENUS, MERCURY } INSTRUMENT_NAME = MESSENGER NAIF_INSTRUMENT_ID = "N/A" SOURCE_PRODUCT_ID = "N/A" NOTE = "See comments in the file for details" OBJECT = SPICE_KERNEL INTERCHANGE_FORMAT = ASCII KERNEL_TYPE = CLOCK_COEFFICIENTS DESCRIPTION = "MESSENGER SPICE SCLK file providing correlation data for the primary MESSENGER on-board clock." END_OBJECT = SPICE_KERNEL General notes regarding label ============================= * Strings appear in quotes. * Integers and PDS Times do not take quotes. * Lists are enclosed within {} type brackets. * If a field is unknown, "UNK" may be entered. * If this field is not applicable to this file, "N/A" can be used. * Fields can spill freely, with or without white space, onto following lines. Definition of Keywords/Values for SPICE Kernels: ================================================ PDS_VERSION_ID The version of the present PDS standards document PDS3 RECORD_TYPE Record format of the file, For files with fixed-length records, FIXED_LENGTH, for text files, STREAM RECORD_BYTES Record length in the case of fixed-length records, an integer (no quotation marks) If records have variable length, "N/A" ^SPICE_KERNEL Actual file name to which this label applies ("messenger_402.tsc" in the example above) MISSION_NAME MESSENGER for MESSENGER project SPACECRAFT_NAME MESSENGER for MESSENGER spacecraft. MESSENGER is an acronym for "MERCURY SURFACE, SPACE ENVIRONMENT, GEOCHEMISTRY AND RANGING" spacecraft. DATA_SET_ID Has form: "MESS-E/V/H-SPICE-6-V1.0" where 'MESS' is for data for MESSENGER spacecraft; 'E/V/H' is for Earth/Venus/Mercury, the mission targets; 'SPICE' is SPICE data identifier; '6' is the CODMAC processing level; V1.0 is the data set version number. KERNEL_TYPE_ID Type of SPICE kernel, one of CK, EK, FK, IK, LSK, PCK, SCLK, or SPK PRODUCT_ID Actual file name ("messenger_402.tsc" in the example above) PRODUCT_CREATION_TIME Time file was created. This follows PDS time structure: yyyy-mm-ddThh:mm:ss No quotes are needed. PRODUCER_ID Team and/or individual who made the file. MISSION_PHASE_NAME The name of the mission phase. PRODUCT_VERSION_TYPE Description of file version: PREDICT or ACTUAL. PLATFORM_OR_MOUNTING_NAME Name of platform an instrument is mounted on. "N/A" for some kernels. START_TIME Data start time. This follows the PDS Time format is yyyy-mm-ddThh:mm:ss.ttt. No quotes are needed. For files not covering a specific time interval, "N/A". STOP_TIME Data stop time. This follows the PDS Time format is yyyy-mm-ddThh:mm:ss.ttt. SPACECRAFT_CLOCK_START_COUNT Spacecraft clock data start time. This is treated as a string, and should be contained in quotes. Format is "n/ssssssssss.######" , where "n" is the partition. For files not covering a specific time , "N/A". SPACECRAFT_CLOCK_START_COUNT Spacecraft clock data stop time. This is treated as a string, and should be contained in quotes. Format is "n/ssssssssss.######", where "n" is the partition. For files not covering a specific time , "N/A". TARGET_NAME { EARTH, VENUS, MERCURY } or "N/A" for generic kernel files. INSTRUMENT_NAME an instrument name (when applicable) otherwise "N/A" NAIF_INSTRUMENT_ID instrument NAIF ID code (when applicable), otherwise "N/A" SOURCE_PRODUCT_ID Brief description of the input data that were used to create the file, as a quoted string. This field may also be UNK or "N/A" NOTE Discretionary extra information, a string contained in quotes. OBJECT SPICE_KERNEL for SPICE kernels. INTERCHANGE_FORMAT Format of the file, either ASCII or BINARY KERNEL_TYPE SPICE information type, Examples of possible values: EPHEMERIS, EVENTS, INSTRUMENT, LEAPSECONDS. etc. DESCRIPTION Brief description of the data in the file. END_OBJECT SPICE_KERNEL for SPICE kernels.