urn:nasa:pds:a12sws_raw_arcsav:data:a12_sws_1975106_l1_arcsav_yz_tab 1.0 1.7.0.0 Product_Observational 1975-04-15T23:59:43.545Z 1975-04-16T23:59:55.964Z Apollo 12 Mission urn:nasa:pds:context:investigation:mission.apollo_12 data_to_investigation Apollo 12 ALSEP Spacecraft urn:nasa:pds:context:instrument_host:spacecraft.a12a is_instrument_host Apollo 12 Solar Wind Spectrometer Instrument urn:nasa:pds:context:instrument:sws.a12a is_instrument MOON Satellite urn:nasa:pds:context:target:satellite.earth.moon data_to_target a12_sws_1975106_l1_arcsav_yz.tab 4220040 3058

Header 0 1380 7-Bit ASCII Text

TimeOffsets 1380 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 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. These sampling-rate-adjusted delay times or offsets were calculated using the mean ALSEP frame duration for this day of year. Carriage-Return Line-Feed 0 2 1380 PosIonLevels1to14_TimeOffsetGroup 14 1 1 35 896 PosIonSumLev1to14_TimeOffsetGroup 1 2 ASCII_Integer 5 %5d DN Timing offset for the sum of the positive ion flux measurements acquired by the 7 Faraday cups at instrument voltage levels 1 through 14 for positive ions: Measurement Numbers DY-1, DY-9, DY-17, DY-25, DY-33, DY-41, DY-49, DY-57, DY-65, DY-73, DY-81, DY-89, DZ-1, and DZ-9, respectively. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DY and DZ measurements for positive ion sum for instrument voltage levels 1 through 14 in the group field PosIonSumLev1to14_Group in that record. PosIonCups1to7_Group 7 1 0 9 56 PosIonCups1to7 1 2 ASCII_Integer 5 %5d DN Timing offset for positive ion flux measurements acquired by the 7 Faraday cups at instrument voltage levels 1 to 14 for positive ions: Measurement Numbers DY-2 to DY-8, DY-10 to DY16, DY-18 to DY-24, DY-26 to DY-32, DY-34 to DY-40, DY-42 to DY-48, DY-50 to DY-56, DY-58 to DY-64, DY-66 to DY-72, DY-74 to DY-80, DY-82 to DY-88, DY-90 to DY-96, DDZ-2 to DZ-8, and DZ-10 to DZ-16, respectively. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DY and DZ measurements for positive ion flux measurements acquired by positive ion cups 1 to 7 at instrument voltage levels 1 to 14 in the group field PosIonCups1to7_Group in that record. ElectronLevels1to14_TimeOffsetGroup 7 1 1 931 448 ElectronSumLev1to14_TimeOffsetGroup 1 2 ASCII_Integer 5 %5d DN Timing offset for the sum of the electron flux measurements acquired by the 7 Faraday cups at instrument voltage levels 1 through 7 for electrons: Measurement Numbers DZ-17 (sum of cups 1 through 7 at level 1), DZ-25 (sum of cups 1 through 7 at level 2), DZ-33 (sum of cups 1 through 7 at level 2), DZ-41 (sum of cups 1 through 7 at level 4), DZ-49 (sum of cups 1 through 7 at level 5), DY-57 (sum of cups 1 through 7 at level 6), and DZ-65 (sum of cups 1 through 7 at level 7), respectively. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DY and DZ measurements for electron sum for instrument voltage levels 1 through 7 in the group field ElectronSumLev1to14_Group in that record. ElectronCups1to7_Group 7 1 0 9 56 ElectronCups1to7 1 2 ASCII_Integer 5 %5d DN Timing offset for electron flux measurements acquired by the 7 Faraday cups at instrument voltage levels 1 to 7 for electrons: Measurement Numbers DZ-18 to DZ-24 (cup 1 at level 1), DZ-26 to DZ-32 (cup 2 at level 2), DZ-34 to DZ-40 (cup 3 at level 3), DZ-42 to DZ-48 (cup 4 at level 4), DZ-50 to DZ-56 (cup 5 at level 5), DZ-58 to DZ-64 (cup 6 at level 6), and DZ-66 to DZ-72 (cup 7 at level 7), respectively. Add this value to the time stamp in the first column of a RawData Table record to derive the time for the corresponding DY and DZ measurements for flux measurements acquired by electron cups 1 to 7 at instrument voltage levels 1 to 7 in the group field ElectronCups1to7_Group in that record. RawData 2760 3056 This table contains the raw SWS positive ion and electron measurements (DY-n and DZ-n) extracted from one daily ALSEP ARCSAV tape. Each record contains all DY-n and DZ-n measurements for one SWS sequence, numbered from 0 to 15, for the given SWS data cycle. Each record begins with the earth-received reference time for the set of data in that record, followed by the cycle number and sequence number, then 96 DY measurements, DY-1 to DY-92, and 72 DZ measurements, DZ-1 to DZ-72. The earth-received time column, the sequence number column and each data measurement column are followed by a quality flag. Records are time-ordered by the earth-received time. Carriage-Return Line-Feed 5 2 1380 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. CycleNum 3 26 ASCII_Integer 4 %4d ms SWS data cycle number. SeqNum 4 31 ASCII_Integer 2 %2d ms SWS sequence number. There are 16 SWS sequences in one SWS data cycle. SeqNum_Flag 5 34 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates the SeqNum has a suspected read or transmission error; A negative sign (-) indicates the SeqNum measurement does not have a suspected read or transmission error or that it is unknown if there was an error. PosIonLevels1to14_Group 14 2 1 35 896 PosIonSumLev1to14 1 4 ASCII_Integer 3 %3d DN Sum of the positive ion flux measurements acquired by the 7 Faraday cups at instrument voltage levels 1 through 14 for positive ions: Measurement Numbers DY-1, DY-9, DY-17, DY-25, DY-33, DY-41, DY-49, DY-57, DY-65, DY-73, DY-81, DY-89, DZ-1, and DZ-9, respectively. Values range from 0 to +255. PosIonSumLev1to14_Flag 2 8 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. PosIonCups1to7_Group 7 2 0 9 56 PosIonCups1to7 1 4 ASCII_Integer 3 %3d DN Positive ion flux measurements acquired by the 7 Faraday cups at instrument voltage levels 1 to 14 for positive ions: Measurement Numbers DY-2 to DY-8, DY-10 to DY16, DY-18 to DY-24, DY-26 to DY-32, DY-34 to DY-40, DY-42 to DY-48, DY-50 to DY-56, DY-58 to DY-64, DY-66 to DY-72, DY-74 to DY-80, DY-82 to DY-88, DY-90 to DY-96, DDZ-2 to DZ-8, and DZ-10 to DZ-16, respectively. Values range from 0 to +255. -9 PosIonCups1to7_Flag 2 8 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. ElectronLevels1to7_Group 7 2 1 931 448 ElecSumLev1to7 1 4 ASCII_Integer 3 %3d DN Sum of the electron flux measurements acquired by the 7 Faraday cups at instrument voltage levels 1 through 7 for electrons: Measurement Numbers DZ-17, DZ-25, DZ-33, DZ-41, DZ-49, DY-57, and DZ-65, respectively. Values range from 0 to +255. ElecSumLev1to7_Flag 2 8 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. ElecCups1to7_Group 7 2 0 9 56 ElecCups1to7 1 4 ASCII_Integer 3 %3d DN Electron flux measurements acquired by the 7 Faraday cups at instrument voltage levels 1 to 7 for electrons: Measurement Numbers DZ-18 to DZ-24, DZ-26 to DZ-32, DZ-34 to DZ-40, DZ-42 to DZ-48, DZ-50 to DZ-56, DZ-58 to DZ-64, and DZ-66 to DZ-72, respectively. Values range from 0 to +255. -9 ElecCups1to7_Flag 2 8 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.