PDS_VERSION_ID = PDS3 /* FILE CHARACTERISTICS */ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 143 FILE_RECORDS = 30 /* POINTERS TO DATA OBJECTS */ ^HEADER_TABLE = ("SR1418H.TAB", 1) ^DATA_TABLE = ("SR1418H.TAB", 2) /* IDENTIFICATION DATA ELEMENTS */ DATA_SET_ID = "MPFL-M-ASIMET-3-RDR-SURF-V1.0" DATA_SET_NAME = "MPFL MARS ATM STRUCT INST / MET PKG 3 RDR SURFACE V1.0" PRODUCER_ID = "MPF ASI/MET TEAM" PRODUCER_FULL_NAME = "JAMES R. MURPHY" PRODUCER_INSTITUTION_NAME = "NEW MEXICO STATE UNIVERSITY" PRODUCT_ID = "MET_RDR-01418-HSK" SESSION_NUMBER = 1418 MISSION_NAME = "MARS PATHFINDER" INSTRUMENT_HOST_NAME = "MARS PATHFINDER LANDER" INSTRUMENT_NAME = "ATMOSPHERIC STRUCTURE INSTRUMENT / METEOROLOGY PACKAGE" INSTRUMENT_ID = "ASIMET" TARGET_NAME = "MARS" PLANET_DAY_NUMBER = 71 MPF_LOCAL_TIME = 13:46:49 SPACECRAFT_CLOCK_START_COUNT = 1252980544.125000 SPACECRAFT_CLOCK_STOP_COUNT = 1252981619.125000 START_TIME = 1997-258T02:04:34.968Z STOP_TIME = 1997-258T02:22:29.975Z START_SOLAR_LONGITUDE = 181.238240 STOP_SOLAR_LONGITUDE = 181.245290 PRODUCT_CREATION_TIME = 1999-04-13T00:00:00.000Z /* DESCRIPTIVE DATA ELEMENTS */ EXPECTED_DATA_RECORDS = 704 RECEIVED_DATA_RECORDS = 29 SESSION_DURATION = 25344.0 SCIENCE_AVERAGING_INTERVAL = 1.0000 HOUSEKEEPING_AVERAGING_INT = 36.0000 SAMPLING_INTERVAL = 1.0000 WIND_SENSOR_POWER_TYPE = "CYCLE" WIND_SENSOR_HIGH_POWER_DUR = 252.0 WIND_SENSOR_LOW_POWER_DUR = 36.0 /* OBJECT DATA ELEMENTS */ OBJECT = HEADER_TABLE INTERCHANGE_FORMAT = ASCII ROWS = 1 COLUMNS = 11 ROW_BYTES = 143 OBJECT = COLUMN NAME = "SESSION NUMBER" DATA_TYPE = INTEGER START_BYTE = 4 BYTES = 5 DESCRIPTION = "The session number of the current file" END_OBJECT = COLUMN OBJECT = COLUMN NAME = RECEIVED_DATA_RECORDS DATA_TYPE = INTEGER START_BYTE = 12 BYTES = 5 DESCRIPTION = "The number of data records received" END_OBJECT = COLUMN OBJECT = COLUMN NAME = SESSION_DURATION DATA_TYPE = REAL START_BYTE = 19 BYTES = 8 DESCRIPTION = "The length, in seconds, of the data- taking portion of the session. The maximum value employed during the mission was 89052.0. The ASI-MET electronics are autonomously powered-off at the end of the duration." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SCIENCE_AVERAGING_INTERVAL DATA_TYPE = REAL START_BYTE = 32 BYTES = 6 DESCRIPTION = "The elapsed time, in seconds, for averaging the samples taken for the 12 'science' measurements. The averaged data is placed in a packet record. The Maximum value is 8,192 seconds, or 2.27 hours. An averaging interval equal to the sampling interval is permitted, hence yielding point sampled (unaveraged) measurements. An averaging interval equal to the Session Duration is permitted. An inconsistency is indicated if the Science Averaging Interval is greater than the Session Duration." END_OBJECT = COLUMN OBJECT = COLUMN NAME = HOUSEKEEPING_AVERAGING_INTERVAL DATA_TYPE = REAL START_BYTE = 41 BYTES = 6 DESCRIPTION = "The elapsed time, in seconds, for averaging the samples taken for the 12 'housekeeping' measurements. The averaged data is placed in a packet record. Maximum value is 8,192 seconds, or 2.27 hours. An averaging interval equal to the sampling interval is permitted, hence yielding point sampled (unaveraged) measurements. An averaging interval equal to the Session Duration is permitted. An inconsistency is indicated if the Housekeeping Averaging Interval is greater than the Session Duration." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SAMPLING_INTERVAL DATA_TYPE = REAL START_BYTE = 51 BYTES = 6 DESCRIPTION = "The elapsed time, in seconds, between consecutive samples of all 24 science and housekeeping measurements, for later averaging. Maximum value is 8,192 seconds, or 2.27 hours. An inconsistency is indicated if the Sampling Interval is greater than either the Science Averaging Interval or the Housekeeping Averaging Interval." END_OBJECT = COLUMN OBJECT = COLUMN NAME = WIND_SENSOR_POWER_TYPE DATA_TYPE = INTEGER START_BYTE = 64 BYTES = 1 DESCRIPTION = "The operating power mode of the wind sensor. The three valid values are: 0: Low power throughout session, 1: High power throughout session, 2: Cyclic low and high power alternating throughout session, starting with low power." END_OBJECT = COLUMN OBJECT = COLUMN NAME = WIND_SENSOR_LOW_POWER_DURATION DATA_TYPE = REAL START_BYTE = 69 BYTES = 6 DESCRIPTION = "The elapsed time, in seconds, for the wind sensor to be in low power mode before switching to high power mode. This parameter is used only if Wind Sensor Power Mode specifies cyclic operation. Maximum value is 8,192 seconds, or 2.27 hours. The power switching times are with respect to the start of data- taking and may be slightly delayed due to other spacecraft activities. This potential delay is not cumulative. An inconsistency is indicated if the Wind Sensor High Power Duration is less than the Sampling Interval." END_OBJECT = COLUMN OBJECT = COLUMN NAME = WIND_SENSOR_HIGH_POWER_DURATION DATA_TYPE = REAL START_BYTE = 79 BYTES = 6 DESCRIPTION = "The elapsed time, in seconds, for the wind sensor to be in high power mode before switching to low power mode. This parameter is used only if Wind Sensor Power Mode specifies cyclic operation. Maximum value is 8,192 seconds, or 2.27 hours. The power switching times are with respect to the start of data-taking and may be slightly delayed due to other spacecraft activities. This potential delay is not cumulative. An inconsistency is indicated if the Wind Sensor Low Power Duration is less than the Sampling Interval." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SPACECRAFT_CLOCK_START_COUNT DATA_TYPE = REAL START_BYTE = 88 BYTES = 14 DESCRIPTION = "SCLK at time session was initiated" END_OBJECT = COLUMN OBJECT = COLUMN NAME = SOLAR_LONGITUDE DATA_TYPE = REAL START_BYTE = 105 BYTES = 9 DESCRIPTION = "Solar Longitude (L sub S) at the time the session began" END_OBJECT = COLUMN END_OBJECT = HEADER_TABLE OBJECT = DATA_TABLE INTERCHANGE_FORMAT = ASCII ROWS = 29 COLUMNS = 17 ROW_BYTES = 143 OBJECT = COLUMN NAME = SOL_OF_DATA_RECORD DATA_TYPE = INTEGER START_BYTE = 1 BYTES = 2 DESCRIPTION = "Sol on which the data record was obtained" END_OBJECT = COLUMN OBJECT = COLUMN NAME = HOUR_OF_DATA_RECORD DATA_TYPE = INTEGER START_BYTE = 4 BYTES = 2 DESCRIPTION = "Hour of sol, in Local Solar Time (LST) at which the data record was obtained" END_OBJECT = COLUMN OBJECT = COLUMN NAME = MINUTE_OF_DATA_RECORD DATA_TYPE = INTEGER START_BYTE = 7 BYTES = 2 DESCRIPTION = "Minute of hour in Local Solar Time (LST) at which the data record was obtained" END_OBJECT = COLUMN OBJECT = COLUMN NAME = SECOND_OF_DATA_RECORD DATA_TYPE = REAL START_BYTE = 10 BYTES = 6 DESCRIPTION = "Second of minute, in Local Solar Time (LST) at which data record was obtained" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "+5_VOLT_REFERENCE_MOTHERBOARD" DATA_TYPE = REAL START_BYTE = 19 BYTES = 6 DESCRIPTION = "Reference 5 volt supply used to offset sensor voltages into the +- 3 volt range; Unit is volts" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "+/-12_VOLT_REFERENCE" DATA_TYPE = REAL START_BYTE = 28 BYTES = 6 DESCRIPTION = "Voltage sensitive to drifts in the +12 V and -12 V power supply voltage rails. Value near 2.4 V is given by (0.4*(-12V)+0.6*(+12V)). Unit is Volts" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "+5_VOLT_TO_ADC" DATA_TYPE = REAL START_BYTE = 37 BYTES = 6 DESCRIPTION = "Analog-to-Digital converter (ADC) +5V supply voltage. Unit is volts. " END_OBJECT = COLUMN OBJECT = COLUMN NAME = "-5_VOLT_TO_ADC" DATA_TYPE = REAL START_BYTE = 46 BYTES = 6 DESCRIPTION = "Analog-to-Digital converter (ADC) -5V supply voltage. Unit is volts. " END_OBJECT = COLUMN OBJECT = COLUMN NAME = SENSE_VOLTAGE_PRT_4 DATA_TYPE = REAL START_BYTE = 55 BYTES = 7 DESCRIPTION = "Unscaled voltage across PRT4, the Platinum Resistance Thermometer that measures MET thermocouple cold (reference) junction temperature in the thermocouple isothermal block. PRT4 temperature is derived from a more sensitive scaled voltage. Unit is volts" END_OBJECT = COLUMN OBJECT = COLUMN NAME = MAST_BASE_ISOTHERMAL_BLOCK_PRT DATA_TYPE = REAL START_BYTE = 64 BYTES = 8 DESCRIPTION = "Temperature, in Kelvin, obtained from analytically fitting the SENSE_VOLTAGE_PRT_4 value to curves relating voltage to temperature obtained in pre-flight calibration" END_OBJECT = COLUMN OBJECT = COLUMN NAME = DRIVE_CURRENT_PRT_4 DATA_TYPE = REAL START_BYTE = 75 BYTES = 6 DESCRIPTION = "The voltage across the PRT4 on the constant current supply leads. This is a failure diagnostic that allows problems with the PRT and current source to be distinguished. Not used in MET calibration. Unit is volts." END_OBJECT = COLUMN OBJECT = COLUMN NAME = DRIVE_CURRENT_PRT5 DATA_TYPE = REAL START_BYTE = 84 BYTES = 6 DESCRIPTION = "The voltage across the PRT5 on the constant current supply leads. This is a failure diagnostic that allows problems with the PRT and current source to be distinguished. Not used in MET calibration. Unit is volts." END_OBJECT = COLUMN OBJECT = COLUMN NAME = WIND_SENSOR_THERMOCOUPLE DATA_TYPE = REAL START_BYTE = 93 BYTES = 6 DESCRIPTION = "This is the temperature, in Kelvin, of the body of the wind sensor cylinder, as determined by the thermocouple located inside the cylinder; the cold-junction for this thermocouple is PRT4" END_OBJECT = COLUMN OBJECT = COLUMN NAME = WIND_SENSOR_CURRENT DATA_TYPE = REAL START_BYTE = 102 BYTES = 6 DESCRIPTION = "Current in amps derived from the voltage across select resistors that define wind sensor current. This voltage should be constant if the constant current source is is working correctly." END_OBJECT = COLUMN OBJECT = COLUMN NAME = PRESSURE_TRANSDUCER_PRT DATA_TYPE = REAL START_BYTE = 111 BYTES = 6 DESCRIPTION = "This is the measured temperature in Kelvin of the PRT located on the pressure transducer. It is used to correct measured pressure for the temperature dependence of gain and offset established during pre-flight and in-flight calibration of the pressure transducer" END_OBJECT = COLUMN OBJECT = COLUMN NAME = CIRCUIT_BOARD_TEMPERATURE DATA_TYPE = REAL START_BYTE = 120 BYTES = 6 DESCRIPTION = "The measured temperature of the MET electronics board in Kelvin" END_OBJECT = COLUMN OBJECT = COLUMN NAME = SPACECRAFT_CLOCK_COUNT DATA_TYPE = REAL START_BYTE = 128 BYTES = 14 DESCRIPTION = "SCLK at the time the housekeeping averaging interval was initiated" END_OBJECT = COLUMN END_OBJECT = DATA_TABLE END