PDS_VERSION_ID = PDS3 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 2286 FILE_RECORDS = 37592 ^TABLE = "PRA_III.TAB" DATA_SET_ID = "VG2-S-PRA-3-RDR-LOWBAND-6SEC-V1.0" SPACECRAFT_NAME = "VOYAGER 2" INSTRUMENT_NAME = "PLANETARY RADIO ASTRONOMY" TARGET_NAME = "SATURN" MISSION_PHASE_NAME = "VOYAGER 2 SATURN ENCOUNTER" START_TIME = 1981-07-22T00:00:01.000Z STOP_TIME = 1981-08-13T23:59:12.000Z PRODUCT_ID = "PRA_III.TAB" PRODUCT_TYPE = "DATA" PRODUCT_CREATION_TIME = 1996-04-24 SPACECRAFT_CLOCK_START_COUNT = "2/42951:21:795" SPACECRAFT_CLOCK_STOP_COUNT = "2/43641:20:794" OBJECT = TABLE INTERCHANGE_FORMAT = ASCII ROWS = 37592 COLUMNS = 10 ROW_BYTES = 2286 SAMPLING_PARAMETER_NAME = TIME SAMPLING_PARAMETER_UNIT = SECOND SAMPLING_PARAMETER_INTERVAL = 6.0 NOTE = " High time resolution and low rate receiver band 6 second sweep data from the Radio Astronomy instrument on Voyager 2 from the Saturn encounter." DESCRIPTION = " The data are provided for 70 low band channels ranging from 1326.0 to 1.2 kHz and spaced 19.2 kHz apart. Columns SWEEP1 through SWEEP8 each contains 71 fields corresponding to one status word and 70 channel data readings." OBJECT = COLUMN NAME = "DATE" COLUMN_NUMBER = 1 DATA_TYPE = "ASCII INTEGER" START_BYTE = 1 BYTES = 6 DESCRIPTION = " Year, month and day of the sample at the start of the first sweep for the record in the format YYMMDD." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SECOND" COLUMN_NUMBER = 2 DATA_TYPE = "ASCII INTEGER" START_BYTE = 7 BYTES = 6 DESCRIPTION = " Seconds of day, to the nearest second, at the start of the sweep. The first value in low band (1326.0 kHz) occurs some 3.9 seconds after this time with samples at successively lower frequencies spaced 0.03 seconds apart. Only one time is given for the entire major frame, thus the start of each sweep is the time given plus 6 seconds times the sweep number minus 1 (i.e. 0 through 7)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SWEEP1" COLUMN_NUMBER = 3 UNIT = "MILLIBELL" DATA_TYPE = "ASCII INTEGER" START_BYTE = 13 BYTES = 4 ITEMS = 71 MISSING_CONSTANT = 0 DESCRIPTION = " 71 4-byte integer data values. The first is a status word, the other 70 are low band channels 1326.0 to 1.2 kHz. For the status word the 12 least significant bits have used, although not all 12 have meaning for PRA low band. Numbering those bits 0 for least significant to 11 for most significant, the bits that have meaning are as follows: bit 0: 15 dB attenuator in use when equal to 1 1: 30 dB attenuator in use when equal to 1 2: 45 dB attenuator in use when equal to 1 9,10 (together): polarization of first channel sampled (1326.0 kHz) according to the scheme: 9\10 0 1 0 R L 1 L R If the status word is zero, any data in that receiver sweep should be discarded." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SWEEP2" COLUMN_NUMBER = 4 UNIT = "MILLIBELL" DATA_TYPE = "ASCII INTEGER" START_BYTE = 297 BYTES = 4 ITEMS = 71 MISSING_CONSTANT = 0 DESCRIPTION = " 71 4-byte integer data values. The first is a status word, the other 70 are low band channels 1326.0 to 1.2 kHz. For the status word the 12 least significant bits have used, although not all 12 have meaning for PRA low band. Numbering those bits 0 for least significant to 11 for most significant, the bits that have meaning are as follows: bit 0: 15 dB attenuator in use when equal to 1 1: 30 dB attenuator in use when equal to 1 2: 45 dB attenuator in use when equal to 1 9,10 (together): polarization of first channel sampled (1326.0 kHz) according to the scheme: 9\10 0 1 0 R L 1 L R If the status word is zero, any data in that receiver sweep should be discarded." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SWEEP3" COLUMN_NUMBER = 5 UNIT = "MILLIBELL" DATA_TYPE = "ASCII INTEGER" START_BYTE = 581 BYTES = 4 ITEMS = 71 MISSING_CONSTANT = 0 DESCRIPTION = " 71 4-byte integer data values. The first is a status word, the other 70 are low band channels 1326.0 to 1.2 kHz. For the status word the 12 least significant bits have used, although not all 12 have meaning for PRA low band. Numbering those bits 0 for least significant to 11 for most significant, the bits that have meaning are as follows: bit 0: 15 dB attenuator in use when equal to 1 1: 30 dB attenuator in use when equal to 1 2: 45 dB attenuator in use when equal to 1 9,10 (together): polarization of first channel sampled (1326.0 kHz) according to the scheme: 9\10 0 1 0 R L 1 L R If the status word is zero, any data in that receiver sweep should be discarded." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SWEEP4" COLUMN_NUMBER = 6 UNIT = "MILLIBELL" DATA_TYPE = "ASCII INTEGER" START_BYTE = 865 BYTES = 4 ITEMS = 71 MISSING_CONSTANT = 0 DESCRIPTION = " 71 4-byte integer data values. The first is a status word, the other 70 are low band channels 1326.0 to 1.2 kHz. For the status word the 12 least significant bits have used, although not all 12 have meaning for PRA low band. Numbering those bits 0 for least significant to 11 for most significant, the bits that have meaning are as follows: bit 0: 15 dB attenuator in use when equal to 1 1: 30 dB attenuator in use when equal to 1 2: 45 dB attenuator in use when equal to 1 9,10 (together): polarization of first channel sampled (1326.0 kHz) according to the scheme: 9\10 0 1 0 R L 1 L R If the status word is zero, any data in that receiver sweep should be discarded." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SWEEP5" COLUMN_NUMBER = 7 UNIT = "MILLIBELL" DATA_TYPE = "ASCII INTEGER" START_BYTE = 1149 BYTES = 4 ITEMS = 71 MISSING_CONSTANT = 0 DESCRIPTION = " 71 4-byte integer data values. The first is a status word, the other 70 are low band channels 1326.0 to 1.2 kHz. For the status word the 12 least significant bits have used, although not all 12 have meaning for PRA low band. Numbering those bits 0 for least significant to 11 for most significant, the bits that have meaning are as follows: bit 0: 15 dB attenuator in use when equal to 1 1: 30 dB attenuator in use when equal to 1 2: 45 dB attenuator in use when equal to 1 9,10 (together): polarization of first channel sampled (1326.0 kHz) according to the scheme: 9\10 0 1 0 R L 1 L R If the status word is zero, any data in that receiver sweep should be discarded." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SWEEP6" COLUMN_NUMBER = 8 UNIT = "MILLIBELL" DATA_TYPE = "ASCII INTEGER" START_BYTE = 1433 BYTES = 4 ITEMS = 71 MISSING_CONSTANT = 0 DESCRIPTION = " 71 4-byte integer data values. The first is a status word, the other 70 are low band channels 1326.0 to 1.2 kHz. For the status word the 12 least significant bits have used, although not all 12 have meaning for PRA low band. Numbering those bits 0 for least significant to 11 for most significant, the bits that have meaning are as follows: bit 0: 15 dB attenuator in use when equal to 1 1: 30 dB attenuator in use when equal to 1 2: 45 dB attenuator in use when equal to 1 9,10 (together): polarization of first channel sampled (1326.0 kHz) according to the scheme: 9\10 0 1 0 R L 1 L R If the status word is zero, any data in that receiver sweep should be discarded." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SWEEP7" COLUMN_NUMBER = 9 UNIT = "MILLIBELL" DATA_TYPE = "ASCII INTEGER" START_BYTE = 1717 BYTES = 4 ITEMS = 71 MISSING_CONSTANT = 0 DESCRIPTION = " 71 4-byte integer data values. The first is a status word, the other 70 are low band channels 1326.0 to 1.2 kHz. For the status word the 12 least significant bits have used, although not all 12 have meaning for PRA low band. Numbering those bits 0 for least significant to 11 for most significant, the bits that have meaning are as follows: bit 0: 15 dB attenuator in use when equal to 1 1: 30 dB attenuator in use when equal to 1 2: 45 dB attenuator in use when equal to 1 9,10 (together): polarization of first channel sampled (1326.0 kHz) according to the scheme: 9\10 0 1 0 R L 1 L R If the status word is zero, any data in that receiver sweep should be discarded." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SWEEP8" COLUMN_NUMBER = 10 UNIT = "MILLIBELL" DATA_TYPE = "ASCII INTEGER" START_BYTE = 2001 BYTES = 4 ITEMS = 71 MISSING_CONSTANT = 0 DESCRIPTION = " 71 4-byte integer data values. The first is a status word, the other 70 are low band channels 1326.0 to 1.2 kHz. For the status word the 12 least significant bits have used, although not all 12 have meaning for PRA low band. Numbering those bits 0 for least significant to 11 for most significant, the bits that have meaning are as follows: bit 0: 15 dB attenuator in use when equal to 1 1: 30 dB attenuator in use when equal to 1 2: 45 dB attenuator in use when equal to 1 9,10 (together): polarization of first channel sampled (1326.0 kHz) according to the scheme: 9\10 0 1 0 R L 1 L R If the status word is zero, any data in that receiver sweep should be discarded." END_OBJECT = COLUMN END_OBJECT = TABLE END