urn:nasa:pds:a17lsg_raw_arcsav:data:a17_lsg_1975155_l1_arcsav_tab 1.0 1.7.0.0 Product_Observational 1975-06-03T23:59:59.736Z 1975-06-04T23:59:59.459Z Apollo 17 Mission urn:nasa:pds:context:investigation:mission.apollo_17 data_to_investigation Apollo 17 ALSEP Spacecraft urn:nasa:pds:context:instrument_host:spacecraft.a17a is_instrument_host Apollo 17 Lunar Seismic Gravimeter Instrument urn:nasa:pds:context:instrument:lsg.a17a is_instrument MOON Satellite urn:nasa:pds:context:target:satellite.earth.moon data_to_target a17_lsg_1975155_l1_arcsav.tab 49112278 141943

Header 0 346 7-Bit ASCII Text

TimeOffsets 346 1 This table provides derived sampling-rate-adjusted delay time as an offset in milliseconds for computing the time for each data measurement in each RawData Table record. The recorded time stamp provided in the first column of each RawData record is the reference earth-received time for the sequence of data measurements within that record. To compute the time for a specific data measurement, add the milliseconds time offset, found in this single-record table TimeOffsets for the data measurement column of interest, to the recorded time stamp in the first column of the RawData record containing the data measurement of interest. Carriage-Return Line-Feed 12 1 346 DG-1_TimeOffsetGroup 31 1 0 34 217 DG-1_TimeOffset 1 1 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-1. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-1 data value in that record. DG-2_TimeOffset 1 252 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-2. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-2 data value in that record. DG-3_TimeOffset 2 258 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-3. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-3 data value in that record. DG-4_TimeOffset 3 265 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-4. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-4 data value in that record. DG-11_TimeOffset 4 274 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-11. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-11 data value in that record. DG-12_TimeOffset 5 282 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-12. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-12 data value in that record. DG-13_TimeOffset 6 290 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-13. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-13 data value in that record. DG-14_TimeOffset 7 298 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-14. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-14 data value in that record. DG-15_TimeOffset 8 306 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-15. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-15 data value in that record. DG-16_TimeOffset 9 314 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-16. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-16 data value in that record. DG-17_TimeOffset 10 322 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-17. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-17 data value in that record. DG-18_TimeOffset 11 330 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-18. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-18 data value in that record. DG-19_TimeOffset 12 339 ASCII_Integer 4 %4d ms Timing offset for Measurement Number DG-19. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DG-19 data value in that record. RawData 692 141941 This table contains raw scientific measurements from LSG sensors (seismic, tide, free mode, and temperature) and experiment operational and command status extracted from one daily ALSEP ARCSAV tape. Each record begins with the reference earth-received time for the set of data in that record followed by 34 raw scientific measurements identified by their LSG Measurement Number, DG-N: 31 seismic (DG-1); 1 tidal (DG-2); 1 free mode (DG-3); and 1 temperature (DG-4); and 9 experiment status and calibration fields (DG-11 through DG-19 from two ALSEP Words). The earth-received time column and each data measurement column are followed by a quality flag. Records are ordered by the earth-received time. Carriage-Return Line-Feed 28 1 346 EarthReceivedTime 1 1 ASCII_String 21 %-21s Day of year and time (Universal Time, formatted as yyyy-dddThh:mm:ss.sss) when the first word of the ALSEP frame containing the sequence of data measurements within this record was received at a ground tracking and receiving station on earth. Each data measurement has time offset (delta t) from this earth-received time. These timing offsets are contained in the single-record, TimeOffsets Table. EarthReceivedTime_Flag 2 23 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this EarthReceivedTime value is from ground software clock; has a suspected transmission, data synchronization or tape read error in the value; or is clearly outside the expected range for this restoration effort. A negative sign (-) indicates this value is the earth-received time, and the value does not have a suspected read or transmission error or that it is unknown if there was an error. stat 3 25 ASCII_String 4 %4s This field contains four 1-byte flags as copied from the ARCSAV tapes. The four flags from left to right are: 1) unedited time sync status; 2) unedited data sync status; 3) edited time sync status; 4) edited data sync status. Values range from 0 to 7. tsd 4 30 ASCII_String 3 %3s This field contains three 1-byte flags set during reading and processing of the ARCSAV tapes. The left-most byte is set to 1 if a read or transmission error is indicated for the earth-received time. The middle byte is set to 1 if a read or transmission error is indicated for the data sync value. The right-most byte is set to 1 if a read or transmission error is indicated for any of the data values. DG-1_Group 31 2 0 34 217 DG-1 1 1 ASCII_Integer 4 %4d DN Measurement Number DG-1. Thirty-one Seismic scientific measurements from LSG ALSEP Words #4, 6 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, and 64. Values range from -512 to +511. The sampling rate was essentially constant for all 31 measurements. DG-1_Flag 2 6 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-2 5 251 ASCII_Integer 4 %4d DN Measurement Number DG-2. One Tide scientific measurement from LSG ALSEP Word #25. Values range from -512 to +511. DG-2_Flag 6 256 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-3 7 258 ASCII_Integer 4 %4d DN Measurement Number DG-3. One Free Mode scientific measurement from LSG ALSEP Word #27. Values range from -512 to +511. DG-3_Flag 8 263 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-4 9 265 ASCII_Integer 4 %4d DN Measurement Number DG-4. One Sensor Temperature scientific measurement from LSG ALSEP Word #29. Values range from -512 to +511. DG-4_Flag 19 270 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-11 11 272 ASCII_Numeric_Base2 6 %6d DN Measurement Number DG-11. Temperature Relays Status from LSG ALSEP Word #35, bits 1-6. One bit for each of the six Temperature Replays numbered 1-6, where the most-significant (left-most) bit is Temperature Relay #1. Values are: 0 = Relay not selected; 1 = Relay selected. DG-11_Flag 12 279 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-12 13 282 ASCII_Integer 4 %4d DN Measurement Number DG-12. Mass Change Motor Status from LSG ALSEP Word #35, bit 7. Values are: 0 = Off; 1 = On. DG-12_Flag 14 287 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-13 15 290 ASCII_Integer 4 %4d DN Measurement Number DG-13. Course/Fine Screw Servo Motor Status and Slewing Status from LSG ALSEP Word #35, bits 8 and 9, provided as an ASCII integer. Values are: 0 or 1 indicate Course/Fine Screw Servo Motor is Off and Slewing Status in indeterminate, 2 = Course/Fine Screw Servo Motor is On and Slewing is Off; 3 = Course/Fine Screw Servo Motor is On and Slewing is On. DG-13_Flag 16 295 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-14 17 298 ASCII_Integer 4 %4d DN Measurement Number DG-14. Tilt Servo Motor Status from LSG ALSEP Word #35, bit 10. Values are: 0 = Off; 1 = On. DG-14_Flag 18 303 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-15 19 306 ASCII_Integer 4 %4d DN Measurement Number DG-15. Command Decoder Power Status from LSG ALSEP Word #37, bit 1. Values are: 0 = Off; 1 = On. DG-15_Flag 20 311 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-16 21 314 ASCII_Integer 4 %4d DN Measurement Number DG-16. Instrument Housing Heating Power Status from LSG ALSEP Word #37, bit 2. Values are: 0 = Off; 1 = On. DG-16_Flag 22 319 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-17 23 322 ASCII_Integer 4 %4d DN Measurement Number DG-17. Pressure Transducer Monitor Status from LSG ALSEP Word #37, bit 3. Values are: 0 = Off; 1 = On. DG-17_Flag 24 327 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-18 25 330 ASCII_Integer 4 %4d DN Measurement Number DG-18. Seismic Gain Mode from LSG ALSEP Word #37, bit 4. Values are: 0 = High; 1 = Low. DG-18_Flag 26 335 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error. DG-19 27 337 ASCII_Numeric_Base2 6 %6d DN Measurement Number DG-19. Command Counter Status from LSG ALSEP Word #37, bits 5-10. The most-significant (left-most) bit is not used (spare) and is always set to 1. The other five bits contain the LSG encoded command. When the LSG Command Decoder is powered Off (DG-15 = 0), all file bits of the LSG encoded command are indeterminate (but probably set to all 1's). When converted to octal, the 6-bit Base2 value ranges from 40 to 77 (decimal 32 to 63). DG-19_Flag 28 344 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this data measurement has a suspected read or transmission error; A negative sign (-) indicates this data measurement does not have a suspected read or transmission error or that it is unknown if there was an error.