PDS_VERSION_ID = PDS3 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 196 FILE_RECORDS = 172 ^TABLE = "DATAINDX.TAB" DATA_SET_ID = "MGS-M-RSS-1-CRU-V1.0" PRODUCT_ID = "DATAINDX.TAB" PRODUCT_TYPE = TABLE INSTRUMENT_HOST_NAME = "MARS GLOBAL SURVEYOR" INSTRUMENT_NAME = "RADIO SCIENCE SUBSYSTEM" TARGET_NAME = MARS PRODUCT_CREATION_TIME = 1999-03-23T22:00:00Z MISSION_NAME = "MARS GLOBAL SURVEYOR" MISSION_PHASE_NAME = "CRUISE" ORBIT_NUMBER = "N/A" START_TIME = 1996-11-13T00:00:00Z STOP_TIME = 1997-11-10T23:59:59Z OBJECT = TABLE INTERCHANGE_FORMAT = ASCII ROWS = 172 COLUMNS = 22 ROW_BYTES = 196 ROW_SUFFIX_BYTES = 0 DESCRIPTION = "This table contains summary information on MGS radio science observing opportunities from November 1996 (Launch) into early November 1997 (first few weeks of Orbit Insertion). Table gives DSN antenna number, times for the pass, times during which data were taken, state of the telecommunications subsystem, and data acquisition parameters. There are also brief comments and references to MGS Radio Science Daily Health Reports for additional information. The data fields occupy 194 bytes; each row is delimited by an ASCII carriage-return line-feed pair, making the total record length 196 bytes." OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "OBSERVING DATE" DATA_TYPE = DATE START_BYTE = 1 BYTES = 10 FORMAT = "N/A" UNIT = "N/A" DESCRIPTION = "UTC date on which the observations began, in YYYY-MM-DD format." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "BEGIN PASS TIME" DATA_TYPE = CHARACTER START_BYTE = 13 BYTES = 6 FORMAT = "N/A" UNIT = "N/A" DESCRIPTION = "JPL time at which the DSN antenna began tracking the spacecraft. In hh:mmA format for morning passes and hh:mmP format for afternoon and evening passes. Daylight and Standard times were observed. Local time was used to simplify planning by the MGS Radio Science support Team. Left blank if not known." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "END PASS TIME" DATA_TYPE = CHARACTER START_BYTE = 22 BYTES = 6 FORMAT = "N/A" UNIT = "N/A" DESCRIPTION = "JPL time at which the DSN antenna stopped tracking the spacecraft. Conventions are same as for BEGIN PASS TIME." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "DAY OF YEAR" DATA_TYPE = ASCII_INTEGER START_BYTE = 30 BYTES = 3 FORMAT = "I3" UNIT = "N/A" DESCRIPTION = "UTC day of year corresponding to OBSERVING DATE." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "PRE-CAL TIME" DATA_TYPE = CHARACTER START_BYTE = 35 BYTES = 5 FORMAT = "N/A" UNIT = "N/A" DESCRIPTION = "UTC time in hh:mm format at which pre-calibration activities began at the DSN station. Left blank if not known." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "DSP START TIME" DATA_TYPE = CHARACTER START_BYTE = 43 BYTES = 8 FORMAT = "N/A" UNIT = "N/A" DESCRIPTION = "UTC time at which the DSP was ready to collect data. For rows at the top of the table, this marks start of actual data collection. For later rows this is the time at which a window opened; columns 9 and 10 give times of data collection. Given in hh:mm:ss format. Left blank if not known." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "DSP STOP TIME" DATA_TYPE = CHARACTER START_BYTE = 54 BYTES = 8 FORMAT = "N/A" UNIT = "N/A" DESCRIPTION = "UTC time at which the DSP stopped data collection. For rows at the top of the table, this marks end of actual data collection. For later rows this is the time at which the window closed; columns 9 and 10 give times of data collection. Left blank if not known." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "DSN STATION NUMBER" DATA_TYPE = ASCII_INTEGER START_BYTE = 64 BYTES = 2 FORMAT = "I2" UNIT = "N/A" DESCRIPTION = "Number of the antenna used to collect data. Antennas commonly supporting MGS included 15, 45, and 65. Left blank if not known." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "DATA START TIME" DATA_TYPE = CHARACTER START_BYTE = 68 BYTES = 8 FORMAT = "N/A" UNIT = "N/A" DESCRIPTION = "UTC time at which the DSP started collecting and recording data. Given in hh:mm:ss format. Left blank if not known, if not applicable, or if times in columns 6 and 7 apply." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "DATA STOP TIME" DATA_TYPE = CHARACTER START_BYTE = 79 BYTES = 8 FORMAT = "N/A" UNIT = "N/A" DESCRIPTION = "UTC time at which the DSP stopped collecting and recording data. Given in hh:mm:ss format. Left blank if not known, if not applicable, or if times in columns 6 and 7 apply." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = "SAMPLING RATE" DATA_TYPE = ASCII_INTEGER START_BYTE = 89 BYTES = 4 FORMAT = "I4" UNIT = "HERTZ" DESCRIPTION = "Rate at which the input signal was sampled. Left blank if unknown or not applicable." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = "BANDWIDTH" DATA_TYPE = ASCII_INTEGER START_BYTE = 94 BYTES = 4 FORMAT = "I4" UNIT = "HERTZ" DESCRIPTION = "Width of the baseband-equivalent output filter. Left blank if unknown or not applicable." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = "DSP MODE" DATA_TYPE = ASCII_INTEGER START_BYTE = 99 BYTES = 1 FORMAT = "I1" UNIT = "N/A" DESCRIPTION = "Sampling mode of the DSP. In mode 1, 4 signals are sampled simultaneously by 4 analog-to-digital converters (ADCs) each operating at SAMPLING RATE. In mode 2 a single signal is sampled by 4 ADCs in succession - at a total rate given by SAMPLING RATE. Modes 3 and 4 were not used by MGS. Blank if unknown or not applicable." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "SAMPLE BITS" DATA_TYPE = ASCII_INTEGER START_BYTE = 101 BYTES = 2 FORMAT = "I2" UNIT = "N/A" DESCRIPTION = "Number of bits in each data sample. The only choices are 8 or 12. Left blank if unknown or not applicable." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = "TRACKING MODE" DATA_TYPE = CHARACTER START_BYTE = 105 BYTES = 3 FORMAT = "N/A" UNIT = "N/A" DESCRIPTION = "Tracking mode used by the DSN closed loop radiometric system. In two-way (2-W) tracking the spacecraft uses a signal received from the ground to set its transmitter frequency. In one-way (1-W) tracking, the spacecraft frequency is referenced to an on-board crystal oscillator. In three-way (3-W) tracking one ground station transmits and two receive. Left blank if unknown or not applicable." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 16 NAME = "TRANSPONDER NUMBER" DATA_TYPE = ASCII_INTEGER START_BYTE = 110 BYTES = 1 FORMAT = "I1" UNIT = "N/A" DESCRIPTION = "Number of the spacecraft transponder used during observations. Default connections attach MOT 2 to the high gain antenna (HGA) and MOT 1 to the low-gain transmit antenna coaligned with the HGA. Left blank if unknown or not applicable." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 17 NAME = "KABLE STATE" DATA_TYPE = CHARACTER START_BYTE = 113 BYTES = 3 FORMAT = "A3" UNIT = "N/A" DESCRIPTION = "Code denoting configuration of the Ka-Band Link Experiment. Usually given in the format P/S where P indicates whether KaBLE is ON P = 1 OFF P = 0 and S denotes the Ka-Band frequency reference: MOT 1 VCO S = A MOT 2 VCO S = B USO S = C unknown S = ? For observations with multiple configurations the following codes apply: 0AB 0/A followed by 0/B 0BC 0/B followed by 0/C 01B 0/B followed by 1/B KMT KaBLE Mode Test - 0/B followed by 1/B followed by 1/C followed by 0/C followed by 0/A followed by 1/A Beginning in June 1997 the codes become simply ON or OFF; the default KaBLE state was ON. Left blank if unknown or not applicable." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 18 NAME = "RANGING STATUS" DATA_TYPE = CHARACTER START_BYTE = 119 BYTES = 3 FORMAT = "A3" UNIT = "N/A" DESCRIPTION = "Status of the ranging subsystem. Valid entries include ON or OFF. Left blank if unknown or not applicable." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 19 NAME = "TELEMETRY STATUS" DATA_TYPE = CHARACTER START_BYTE = 125 BYTES = 3 FORMAT = "A3" UNIT = "N/A" DESCRIPTION = "Status of telemetry modulation. Valid entries include ON or OFF. Left blank if unknown or not applicable." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 20 NAME = "STANFORD DATA STATUS" DATA_TYPE = CHARACTER START_BYTE = 131 BYTES = 1 FORMAT = "A1" UNIT = "N/A" DESCRIPTION = "Status of data delivery to Stanford. Set to N if data not delivered. Left blank if data delivered or if delivery was not a key issue. Used infrequently after the first two months." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 21 NAME = "HEALTH REPORT POINTER" DATA_TYPE = CHARACTER START_BYTE = 135 BYTES = 17 FORMAT = "A17" UNIT = "N/A" DESCRIPTION = "MGS RST Daily Health Reports were assigned file names of the form HEAydddC.TXT where y is the one-digit year, ddd is the three-digit day-of-year on which the report was compiled, and C is a character (starting with A) used to distinguish two or more reports on the same day. This field gives ydddC for up to three Health Reports containing additional information on these observations." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 22 NAME = "NOTES" DATA_TYPE = CHARACTER START_BYTE = 155 BYTES = 39 FORMAT = "A39" UNIT = "N/A" DESCRIPTION = "Terse text briefly giving test name, objectives, and/or results. Left blank if no special information." END_OBJECT = COLUMN END_OBJECT = TABLE END