PDS_VERSION_ID = PDS3 DATA_SET_ID = "DS1-C-PEPE-2-EDR-BORRELLY-V1.0" STANDARD_DATA_PRODUCT_ID = "ASCII ELECTRONS" PRODUCT_ID = "ELC01263_A" PRODUCT_TYPE = "EDR" PRODUCT_VERSION_ID = "V1" PRODUCT_CREATION_TIME = 2003-10-03T18:00:00 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 77 FILE_RECORDS = 16896 START_TIME = 2001-263T00:15:57 STOP_TIME = 2001-264T00:08:29 SPACECRAFT_CLOCK_START_COUNT = "UNK" SPACECRAFT_CLOCK_STOP_COUNT = "UNK" INSTRUMENT_HOST_NAME = "DEEP SPACE 1" INSTRUMENT_HOST_ID = "DS1" MISSION_PHASE_NAME = "BORRELLY ENCOUNTER" TARGET_NAME = "19P/BORRELLY 1 (1904 Y2)" INSTRUMENT_NAME = "PLASMA EXPERIMENT FOR PLANETARY EXPLORATION" INSTRUMENT_ID = "PEPE" DESCRIPTION = " ASCII edited raw DS1 electron spectra (PEPE) data from the Borrelly flyby These data are the counts of electrons, in four azimuthal, four elevation and 64 energy bins. The data cover 2001-09-20T00:15 to 2001-09-21T00:08." NOTE = " A binary version of this file is available as ELC01263_B.DAT." ^ASCII_TABLE = "ELC01263_A.TAB" OBJECT = ASCII_TABLE INTERCHANGE_FORMAT = ASCII ROWS = 16896 COLUMNS = 10 ROW_BYTES = 77 DESCRIPTION = " The data file is an ASCII table. Each data record contains the time of the beginning of the measurement and an offset time. The offset gives the start of the first integration in the collapsed data. Each record contains electron counts in four azimuth directions. There are 256 records in each measurement. Records step through 4 elevation steps and 64 energies to complete a (64,4,4) array of energy, elevation, and azimuth." OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "MEASUREMENT_NUMBER" DATA_TYPE = ASCII_INTEGER START_BYTE = 1 BYTES = 5 FORMAT = "I5" DESCRIPTION = " Measurement number from the start of day. This value only updates when the previous measurement is complete." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "PDS_START_TIME" DATA_TYPE = TIME START_BYTE = 7 BYTES = 17 FORMAT = "A17" DESCRIPTION = " The spacecraft event time (UTC) of the measurement start time represented in the ISO standard time format: yyyy-dddThh:mm:ss" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "MEASUREMENT_START_TIME" UNIT = "SECOND" DATA_TYPE = ASCII_INTEGER START_BYTE = 25 BYTES = 8 FORMAT = "I8" DESCRIPTION = " The spacecraft event time (UTC) of the measurement start time represented as the number of seconds after the J2000 epoch (2000-001T12:00:00.000)." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "RECORD_OFFSET_TIME" UNIT = "SECOND" DATA_TYPE = ASCII_INTEGER START_BYTE = 34 BYTES = 5 FORMAT = "I5" DESCRIPTION = " The offset time (seconds) gives the start of the first integration in the collapsed data." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "ENERGY_STEP" DATA_TYPE = ASCII_INTEGER START_BYTE = 40 BYTES = 2 FORMAT = "I2" DESCRIPTION = " Energy step number (0-63). See Table 3 in the data set catalog file (PEPE_BORRELLY_DS.CAT) for the energy associated with each energy step number." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "ELEVATION_STEP" DATA_TYPE = ASCII_INTEGER START_BYTE = 43 BYTES = 1 FORMAT = "I1" DESCRIPTION = " Elevation step number (0-3). --------------------------------------------- Step number Min angle Max angle --------------------------------------------- 0 -45 -22.5 1 -22.5 0 2 0 22.5 3 22.5 45" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "AZIMUTH_0_DATA" UNIT = "COUNT" DATA_TYPE = ASCII_INTEGER START_BYTE = 45 BYTES = 7 FORMAT = "I7" DESCRIPTION = " Electron counts in the azimuth 0 direction. -------------------------------------------- Azimuth number Minimum angle Maximum angle -------------------------------------------- 0 0 90 1 90 180 2 180 270 3 270 360" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "AZIMUTH_1_DATA" UNIT = "COUNT" DATA_TYPE = ASCII_INTEGER START_BYTE = 53 BYTES = 7 FORMAT = "I7" DESCRIPTION = " Electron counts in the azimuth 1 direction. -------------------------------------------- Azimuth number Minimum angle Maximum angle -------------------------------------------- 0 0 90 1 90 180 2 180 270 3 270 360" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "AZIMUTH_2_DATA" UNIT = "COUNT" DATA_TYPE = ASCII_INTEGER START_BYTE = 61 BYTES = 7 FORMAT = "I7" DESCRIPTION = " Electron counts in the azimuth 2 direction. -------------------------------------------- Azimuth number Minimum angle Maximum angle -------------------------------------------- 0 0 90 1 90 180 2 180 270 3 270 360" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "AZIMUTH_3_DATA" UNIT = "COUNT" DATA_TYPE = ASCII_INTEGER START_BYTE = 69 BYTES = 9 FORMAT = "I9" DESCRIPTION = " Electron counts in the azimuth 3 direction. -------------------------------------------- Azimuth number Minimum angle Maximum angle -------------------------------------------- 0 0 90 1 90 180 2 180 270 3 270 360" END_OBJECT = COLUMN END_OBJECT = ASCII_TABLE END