urn:nasa:pds:a17leam_raw_worktape:data:a17_leam_1976_l1_wt_hk_tab 1.0 1.7.0.0 Product_Observational 1976-03-01T00:01:57.350Z 1976-07-18T13:49:13.353Z 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:leam.a17a is_instrument MOON Satellite urn:nasa:pds:context:target:satellite.earth.moon data_to_target Dust Dust urn:nasa:pds:context:target:dust.dust data_to_target a17_leam_1976_l1_wt_hk.tab 11709873 220941

Header 0 53 7-Bit ASCII Text

TimeOffsets 53 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 RawHK Table record. The recorded time stamp provided in the first column of each RawHK record is the reference earth-received time for the sequence of data measurements within that record. To compute the start 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 RawHK record containing the data measurement of interest. Carriage-Return Line-Feed 3 0 53 AJ-m_TimeOffset 1 28 ASCII_Integer 4 %4d ms Timing offset for Measurement Numbers AJ-m, where m is 1 to 5. Add this value to the time stamp in the first column of a RawHK Table record to derive the time for the corresponding AJ-m data value in that record. AJ-n_TimeOffset 1 38 ASCII_Integer 4 %4d ms Timing offset for Measurement Numbers AJ-n, where n is 6 to 10. Add this value to the time stamp in the first column of a RawHK Table record to derive the time for the corresponding AJ-n data value in that record. AJ-11_TimeOffset 1 46 ASCII_Integer 4 %4d ms Timing offset for Measurement Numbers AJ-11. Add this value to the time stamp in the first column of a RawHK Table record to derive the time for the corresponding AJ-11 data value in that record. RawHK 106 220939 This table contains raw digital analog Housekeeping (engineering) data specific to LEAM operation. Housekeeping is contained in ALSEP Word 33. Each record begins with the reference earth-received time for the set of data in that record followed by 3 raw digital analog measurements identified by their LEAM Measurement Numbers AJ-N. Column number 4 (AJ-m) contains measurements for AJ-1 to AJ-5, where column number 3 ('m') identifies the specific measurement number 1, 2, 3, 4, or 5. Column number 7 (AJ-n) contains measurements for AJ-6 to AJ-10, where column number 6 ('n') identifies the specific measurement number 6, 7, 8, 9, or 10. Column number 9 contains AJ-11 measurements. The value 'x' for an AJ number indicates the specific measurement number could not be determined. 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 10 0 53 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 housekeeping measurements within this record was received at a ground tracking and receiving station on earth. Each housekeeping 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 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. m 3 25 ASCII_Integer 2 This field provides 'm' which identifies the specific Measurement Number AJ-m in column 4, where m is 1, 2, 3, 4, or 5. The value 88 indicates the specific Measurement Number 'm' could not be determined. 88 AJ-m 4 29 ASCII_Integer 3 %3d DN Measurement Number AJ-m, where m is 1, 2, 3, 4, or 5 from column 3. These measurements are read from ALSEP Word #33, frame (channel) number 83. -9 AJ-m_Flag 5 33 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. n 6 35 ASCII_Integer 2 This field provides 'n' which identifies the specific Measurement Number AJ-n in column 7, where n is 6, 7, 8, 9, or 10. The value 88 indicates the specific Measurement Number 'n' could not be determined. 88 AJ-n 7 39 ASCII_Integer 3 %3d DN Measurement Number AJ-n, where n is 6, 7, 8, 9, or 10 from column 6. These measurements are read from ALSEP Word #33, frame (channel) number 84. -9 AJ-n_Flag 8 43 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. AJ-11 9 47 ASCII_Integer 3 %3d DN Measurement Number AJ-11. One LEAM Electronics Survival Temperature measurement read from ALSEP Word #33, frame (channel) number 85. -9 AJ-11_Flag 10 51 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.