PDS_VERSION_ID = PDS3 /* FILE_RECORDS = n */ /* RECORD_BYTES = 256+4080+16 */ /* ______________________________________ */ /* | | record 1 */ /* | HEADER_ARRAY | */ /* | =256 bytes | */ /* |____________________________________| */ /* | | */ /* | DATA_ARRAY | */ /* | =4080 bytes | */ /* |____________________________________| */ /* | | */ /* | SPARE_ARRAY | */ /* | =16 bytes | */ /* |____________________________________| */ /* ... . ... . ... */ /* ______________________________________ */ /* | | record n */ /* | HEADER_ARRAY | */ /* | =256 bytes | */ /* |____________________________________| */ /* | | */ /* | DATA_ARRAY | */ /* | =4080 bytes | */ /* |____________________________________| */ /* | | */ /* | SPARE_ARRAY | */ /* | =16 bytes | */ /* |____________________________________| */ /* FILE CHARACTERISTICS DATA ELEMENTS */ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 4352 FILE_RECORDS = 817 /* DATA OBJECT POINTERS IDENTIFICATION DATA ELEMENTS */ ^RECORD_ARRAY = "SPIV_0AU_0931A16_A_04.DAT" FILE_NAME = "SPIV_0AU_0931A16_A_04.DAT" DATA_SET_ID = "VEX-V-SPI-2-UVEDR-RAWXVENUS-EXT1-V1.0" DATA_SET_NAME = "VEX EXT 1 SPICAV VENUS UV EDR-RAW V1.0" RELEASE_ID = 0003 REVISION_ID = 0001 DISTRIBUTION_TYPE = DATA PRODUCT_ID = "SPIV_0AU_0931A16_A_04.DAT" PRODUCT_CREATION_TIME = 2010-05-21T09:50:54.000 MISSION_NAME = "VENUS EXPRESS" MISSION_ID = VEX INSTRUMENT_HOST_NAME = "VENUS EXPRESS" INSTRUMENT_HOST_ID = VEX MISSION_PHASE_NAME = "PHASE 16" TARGET_NAME = "VENUS" TARGET_TYPE = PLANET SPACECRAFT_POINTING_MODE = "NADIR" SPACECRAFT_POINTING_MODE_DESC = "This pointing mode is used for science observations nominally around the pericentre. In this pointing mode the Z-axis of the spacecraft points towards the centre of Venus and the X-axis perpendicular to the ground track." RIGHT_ASCENSION = "N/A" DECLINATION = "N/A" VEX:SCIENCE_CASE_ID = 2 VEX:SCIENCE_CASE_ID_DESC = "Please refer to VEX_SCIENCE_CASE_ID_DESC.TXT in the DOCUMENT directory" OBSERVATION_TYPE = {AC007A, CL002A, AS004B, AC005A, AD009A, AD013A, RB003A, SF002A, SF003A, SF004A} PRODUCT_TYPE = EDR PROCESSING_LEVEL_ID = 2 STANDARD_DATA_PRODUCT_ID = RAWX START_TIME = 2008-11-07T05:45:57.000 STOP_TIME = 2008-11-07T05:59:33.000 SPACECRAFT_CLOCK_START_COUNT = "1/0116401549.06888" SPACECRAFT_CLOCK_STOP_COUNT = "1/0116402365.06885" ORBIT_NUMBER = 0931 ORBITAL_ECCENTRICITY = 0.84167425 ORBITAL_INCLINATION = 83.769233 ORBITAL_SEMIMAJOR_AXIS = 73009.974 PERIAPSIS_ALTITUDE = 6253.4265 PERIAPSIS_ARGUMENT_ANGLE = 115.14901 PERIAPSIS_TIME = 2008-11-07T09:00:33.000 PRODUCER_ID = VEX_SPI_TEAM PRODUCER_FULL_NAME = "JEAN-LOUP BERTAUX" PRODUCER_INSTITUTION_NAME = "SERVICE D'AERONOMIE, IPSL/CNRS,FRANCE" INSTRUMENT_ID = SPICAV INSTRUMENT_NAME = "SPICAV" INSTRUMENT_TYPE = "SPECTROMETER" DESCRIPTION = "This file contains all records of a UV SPICAV observation; for completness, each record consists of a SPICAV header array, followed by the SPICAV spectra." DATA_QUALITY_ID = 20000000 DATA_QUALITY_DESC = "See definitions in DATA_QUALITY_ID_DESC.TXT" /* INSTRUMENT AND DETECTOR DESCRIPTIVE DATA ELEMENTS */ CHANNEL_ID = "UV" INSTRUMENT_MODE_ID = ALIGN_S ^SPICAV_MODE_DESC = "SPICAV_UVMODE_DESC.TXT" VEX:SPICAV_UV_EXPOSURE_TIME = 64 /* (*10 msec) */ VEX:SPICAV_UV_FIRST_BAND = 9 /*First band position */ VEX:SPICAV_UV_CCD_ROWS_BINNED = 0 /*Number of physical CCD row binned */ /* and contained in one band. (=0 in the case of BINNINGP mode) */ VEX:SPICAV_UV_HT = 1 /*High Voltage put on the intensifier */ /*of the CCD */ /* DATA OBJECT DEFINITION */ OBJECT = RECORD_ARRAY NAME = "SPICAV UV RECORD ARRAY" INTERCHANGE_FORMAT = BINARY AXES = 1 AXIS_ITEMS = 817 DESCRIPTION = "This file contains all records of a UV SPICAV observation. A record is described by a COLLECTION object." OBJECT = COLLECTION NAME = "ONE SPICAV UV RECORD" BYTES = 4352 DESCRIPTION = "One spicav UV record contains all the header and data information from one spicav UV integration result of one sequence of measurement. The header length is 256 (HEADER_ARRAY) and the data length is 4080 (DATA_ARRAY). The last 16 bytes are ignored (SPARE_ARRAY)." OBJECT = HEADER_ARRAY ^STRUCTURE = "HEADER_ARRAY.FMT" END_OBJECT = HEADER_ARRAY OBJECT = DATA_ARRAY NAME = "DATA ARRAY" AXES = 2 AXIS_ITEMS = (408,5) AXIS_NAME = (SAMPLE,BAND) START_BYTE = 257 DESCRIPTION = " A data table is contained in the last 4096 bytes of each EDR SPICAV record. More exactly, the valid data table consists in a array of 5 rows and 408 columns(2040*2 bytes) representing a band of 5 rows of the CCD,each row containing 408 pixels." OBJECT = ELEMENT NAME = "DN PIXEL VALUE" DESCRIPTION = "Pixel of a line of the CCD - the DN pixel value describes the value of analog to digital conversion of the charged collected by one pixel of a CCD during the integration time as a digital number" DATA_TYPE = LSB_INTEGER BYTES = 2 END_OBJECT = ELEMENT END_OBJECT = DATA_ARRAY OBJECT = SPARE_ARRAY NAME = "SPARE ARRAY" AXES = 1 AXIS_ITEMS = 8 START_BYTE = 4337 DESCRIPTION = "This array contains the 16 bytes not used or ignored" OBJECT = ELEMENT NAME = "SPARE ELEMENT" DESCRIPTION = "Element not used" DATA_TYPE = LSB_INTEGER BYTES = 2 END_OBJECT = ELEMENT END_OBJECT = SPARE_ARRAY END_OBJECT = COLLECTION END_OBJECT = RECORD_ARRAY END