PDS_VERSION_ID = PDS3 DATA_SET_ID = "DS1-C-PEPE-2-EDR-BORRELLY-V1.0" STANDARD_DATA_PRODUCT_ID = "ASCII TOF" PRODUCT_ID = "TOF01263_A" PRODUCT_TYPE = "EDR" PRODUCT_CREATION_TIME = 2003-10-03T18:00:00 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 8226 FILE_RECORDS = 66 START_TIME = 2001-263T00:15:57 STOP_TIME = 2001-263T23:47:00 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 DS1 PEPE raw time-of-flight data from the Borrelly flyby. The data cover the time period between 2001-09-20T00:15 and 2001-09-20T23:47." NOTE = " A binary version of this file is available as TOF01263_B.DAT." ^TABLE = "TOF01263_A.TAB" OBJECT = TABLE INTERCHANGE_FORMAT = ASCII ROWS = 66 COLUMNS = 4 ROW_BYTES = 8226 DESCRIPTION = " These data are time-of-flight mass spectra, summed over all energies, elevations and azimuths. TOF bins 48 to 1071 were returned in these data. The ions' time-of-flight is nominally 0.75 ns * TOF bin number. Post-launch experiments with the PEPE prototype were more consistent with 0.82 ns * TOF bin number. The path length between the start foil and the stop detector is 81.4 mm. The data are stored in an ASCII table. Each data record contains the time of the beginning of the measurement plus the number of counts detected in each of 1024 time-of-flight bins." 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 = "TOF_BINS" UNIT = "COUNT" DATA_TYPE = ASCII_INTEGER START_BYTE = 33 BYTES = 8192 FORMAT = "I8192" ITEMS = 1024 ITEM_BYTES = 8 DESCRIPTION = " An array of 1024 time-of-flight bins (0-1023) containing the number of counts in each bin over the measurement." END_OBJECT = COLUMN END_OBJECT = TABLE END