PVO Retarding Potential Analyzer Low Resolution Processed data. Data are stored in single orbit ASCII files (*.TAB). All of the data files have the same internal structure which is described by the single format file ORPADATA.FMT. File structure characteristics which may vary from file to file (# of records, start/stop time, etc.) are described in the individual PDS label files (*.LBL). /-------------------------\ | D A T A | \-------------------------/ Columns in all data files: ===================================================== name type description ----------------------------------------------------- PDSTIME char_24 UT of UADS record time which is defined for all PVO inst providing UADS data. ORBIT integer_4 Orbit number TPER integer_4 Time from periapsis UT integer_4 Universal time TOTI integer_4 Total ion den H float_4 Hydrogen ion den O float_4 Oxygen ion den O2 float_4 O2 ion den CO2 float_4 Carbon dioxide ion den TI float_4 Ion temperature VX float_4 Ion bulk vel X comp VY float_4 Ion bulk vel Y comp VZ float_4 Ion bulk vel Z comp F1I float_4 First ion current, no retarding potential BKGI float_4 Background current at start of ion sweep, +37V potential VPI float_4 S/C potential at start of ion sweep TOTE float_4 Total electron density TE float_4 Electron temperature F1E float_4 First thermal ele current, +6.8V from S/C ground BKGE float_4 Background current at start of thermal ele sweep, -4.6V potential VPE float_4 S/C potential at start of thermal ele sweep N1 float_4 Cold ele density T1 float_4 Cold ele temperature N2 float_4 Hot ele density T2 float_4 Hot ele temperature F1P float_4 First photoele current, no retarding potential BKGP float_4 Background current at start of photoele sweep, -58V potential VPPE float_4 S/C potential at start of photoele sweep Missing data values for the data columns can be found in the UADS_HDR.TXT file, as well as listed in the ORPADATA.FMT file. Data Files (.TAB extension) =============================================================================== Name Records Cols Len Start Stop ------------------------------------------------------------------------------- ORB0225.TAB 301 28 243 1979-07-17T21:41:41.867Z 1979-07-17T22:41:29.867Z ORB0227.TAB 301 28 243 1979-07-19T21:39:21.086Z 1979-07-19T22:39:21.086Z ORB0249.TAB 301 28 243 1979-08-10T21:55:08.672Z 1979-08-10T22:55:08.672Z ORB0291.TAB 301 28 243 1979-09-21T23:17:15.031Z 1979-09-22T00:17:03.035Z Catalog data which includes instrument and dataset descriptions are located at: /CATALOG/DATASET.CAT /CATALOG/INST.CAT =============================================================================== MAX/MIN Statistics for: ORB0225 ------------------------------------------------------------------------------- :::::::::::::: ORB0225.stats :::::::::::::: /=====================================================================\ | D A T A F L O W S T A T I S T I C S | \=====================================================================/ Number of columns in data flow: 28 --------- Aggregate Statistics ---------- Total number of records: 301 /======================================================================\ | COLUMN | MINIMUM | MAXIMUM | AVERAGE | # FLAGS | |======================================================================| |PDSTIME | 4.27326e+08| 4.2733e+08| 4.27328e+08| 0| |ORBIT | 225| 225| 225| 0| |TPER | -1800| 1800| 0| 1| |UT | 7.92005e+07| 8.16914e+07| 8.08915e+07| 226| |TOTI | 6| 17651| 2772.04| 277| |H | 1277| 1566| 1386.33| 298| |O | 8105| 10988| 9481.33| 298| |O2 | 1.7e+308| -1.7e+308| NaN| 301| |CO2 | 1.7e+308| -1.7e+308| NaN| 301| |TI | 2661| 2808| 2725.67| 298| |VX | -60| 139| 69.6667| 298| |VY | -30| 75| 23.3333| 298| |VZ | -341| 283| -67.3333| 298| |F1I | -1.38e-12| 1.29e-09| 2.24996e-10| 277| |BKGI | -8.24e-11| -4.64e-12| -2.97887e-11| 277| |VPI | -1.63| -1.3| -1.51| 298| |TOTE | 1.7e+308| -1.7e+308| NaN| 301| |TE | 1.7e+308| -1.7e+308| NaN| 301| |F1E | -3.81e-08| -4.59e-10| -1.23103e-08| 294| |BKGE | -5.14e-10| -2.57e-11| -1.36371e-10| 294| |VPE | 1.7e+308| -1.7e+308| NaN| 301| |N1 | 5107| 5107| 5107| 300| |T1 | 0.5| 0.5| 0.5| 300| |N2 | 31| 31| 31| 300| |T2 | 9| 9| 9| 300| |F1P | -9.39e-10| -2.24e-10| -5.39773e-10| 257| |BKGP | -2.01e-10| -5.22e-13| -5.53427e-11| 257| |VPPE | -1.5| -1.5| -1.5| 300| \======================================================================/ /============================================================================\ | | | | | MOST COMMON | NUMBER | | TIME | FIRST | LAST | AVERAGE | INCREMENTS | OF | | COLUMN | VALUE | VALUE | INCREMENT|---------+---------| FLAGS | | | | | | VALUE | COUNT | | |============================================================================| | PDSTIME | 4.27326e+08| 4.2733e+08| 11.96|===================| 0| |----------+ | +----------| 12| 298| | |1979/07/17 21:41:41.867|1979/07/17 22:41:29.867| 11.9922| 1| | |-----------------------|-----------------------|0.0078125| 1| | \============================================================================/ =============================================================================== MAX/MIN Statistics for: ORB0227 ------------------------------------------------------------------------------- :::::::::::::: ORB0227.stats :::::::::::::: /=====================================================================\ | D A T A F L O W S T A T I S T I C S | \=====================================================================/ Number of columns in data flow: 28 --------- Aggregate Statistics ---------- Total number of records: 301 /======================================================================\ | COLUMN | MINIMUM | MAXIMUM | AVERAGE | # FLAGS | |======================================================================| |PDSTIME | 4.27499e+08| 4.27502e+08| 4.27501e+08| 0| |ORBIT | 227| 227| 227| 0| |TPER | -1800| 1800| 0| 1| |UT | 7.79659e+07| 8.15671e+07| 7.97463e+07| 35| |TOTI | 5| 222696| 42343.2| 216| |H | 1.7e+308| -1.7e+308| NaN| 301| |O | 2895| 75829| 30929.9| 265| |O2 | 1538| 202857| 96176.2| 285| |CO2 | 1.7e+308| -1.7e+308| NaN| 301| |TI | 386| 20458| 2589.32| 261| |VX | -1643| 543| -145.275| 261| |VY | -992| 989| 60.825| 261| |VZ | -3594| 858| -555.075| 261| |F1I | -6.74e-12| 2.74e-08| 4.42796e-09| 216| |BKGI | -5.14e-10| 1.36e-09| 1.83411e-11| 216| |VPI | -2.07| -0.93| -1.43575| 261| |TOTE | 16263| 40074| 25036.8| 297| |TE | 0| 3732| 1282.25| 297| |F1E | -8.18e-06| -4.32e-09| -9.9639e-07| 272| |BKGE | -1.16e-08| -4.08e-11| -1.05982e-09| 272| |VPE | 2.57| 10| 8.1425| 297| |N1 | 1.7e+308| -1.7e+308| NaN| 301| |T1 | 1.7e+308| -1.7e+308| NaN| 301| |N2 | 1.7e+308| -1.7e+308| NaN| 301| |T2 | 1.7e+308| -1.7e+308| NaN| 301| |F1P | -1.45e-09| -2.36e-10| -7.55513e-10| 149| |BKGP | -2.94e-10| -3.11e-12| -8.77016e-11| 149| |VPPE | 1.7e+308| -1.7e+308| NaN| 301| \======================================================================/ /============================================================================\ | | | | | MOST COMMON | NUMBER | | TIME | FIRST | LAST | AVERAGE | INCREMENTS | OF | | COLUMN | VALUE | VALUE | INCREMENT|---------+---------| FLAGS | | | | | | VALUE | COUNT | | |============================================================================| | PDSTIME | 4.27499e+08| 4.27502e+08| 12|===================| 0| |----------+ | +----------| 12| 300| | |1979/07/19 21:39:21.086|1979/07/19 22:39:21.086|=========|=========| | |-----------------------|-----------------------|=========|=========| | \============================================================================/ =============================================================================== MAX/MIN Statistics for: ORB0249 ------------------------------------------------------------------------------- :::::::::::::: ORB0249.stats :::::::::::::: /=====================================================================\ | D A T A F L O W S T A T I S T I C S | \=====================================================================/ Number of columns in data flow: 28 --------- Aggregate Statistics ---------- Total number of records: 301 /======================================================================\ | COLUMN | MINIMUM | MAXIMUM | AVERAGE | # FLAGS | |======================================================================| |PDSTIME | 4.29401e+08| 4.29404e+08| 4.29402e+08| 0| |ORBIT | 249| 249| 249| 0| |TPER | -1800| 1800| 0| 1| |UT | 7.89232e+07| 8.24895e+07| 8.09632e+07| 260| |TOTI | 1.7e+308| -1.7e+308| NaN| 301| |H | 1.7e+308| -1.7e+308| NaN| 301| |O | 1.7e+308| -1.7e+308| NaN| 301| |O2 | 1.7e+308| -1.7e+308| NaN| 301| |CO2 | 1.7e+308| -1.7e+308| NaN| 301| |TI | 1.7e+308| -1.7e+308| NaN| 301| |VX | 1.7e+308| -1.7e+308| NaN| 301| |VY | 1.7e+308| -1.7e+308| NaN| 301| |VZ | 1.7e+308| -1.7e+308| NaN| 301| |F1I | 1.7e+308| -1.7e+308| NaN| 301| |BKGI | 1.7e+308| -1.7e+308| NaN| 301| |VPI | 1.7e+308| -1.7e+308| NaN| 301| |TOTE | 1.7e+308| -1.7e+308| NaN| 301| |TE | 1.7e+308| -1.7e+308| NaN| 301| |F1E | 1.7e+308| -1.7e+308| NaN| 301| |BKGE | 1.7e+308| -1.7e+308| NaN| 301| |VPE | 1.7e+308| -1.7e+308| NaN| 301| |N1 | 818| 29375| 8466.25| 297| |T1 | 0.4| 1.18| 0.85| 297| |N2 | 44.2| 131.9| 87.925| 297| |T2 | 5.8| 17.1| 11.225| 297| |F1P | -1.58e-09| 3.15e-14| -8.69487e-10| 260| |BKGP | -2.02e-10| 1.82e-11| -5.78142e-11| 260| |VPPE | -1.5| -1.5| -1.5| 297| \======================================================================/ /============================================================================\ | | | | | MOST COMMON | NUMBER | | TIME | FIRST | LAST | AVERAGE | INCREMENTS | OF | | COLUMN | VALUE | VALUE | INCREMENT|---------+---------| FLAGS | | | | | | VALUE | COUNT | | |============================================================================| | PDSTIME | 4.29401e+08| 4.29404e+08| 12|===================| 0| |----------+ | +----------| 12| 300| | |1979/08/10 21:55:08.672|1979/08/10 22:55:08.672|=========|=========| | |-----------------------|-----------------------|=========|=========| | \============================================================================/ =============================================================================== MAX/MIN Statistics for: ORB0291 ------------------------------------------------------------------------------- :::::::::::::: ORB0291.stats :::::::::::::: /=====================================================================\ | D A T A F L O W S T A T I S T I C S | \=====================================================================/ Number of columns in data flow: 28 --------- Aggregate Statistics ---------- Total number of records: 301 /======================================================================\ | COLUMN | MINIMUM | MAXIMUM | AVERAGE | # FLAGS | |======================================================================| |PDSTIME | 4.33034e+08| 4.33038e+08| 4.33036e+08| 0| |ORBIT | 291| 291| 291| 0| |TPER | -1800| 1800| 0| 1| |UT | 34364| 8.63828e+07| 6.84687e+07| 180| |TOTI | 6| 433043| 13251.4| 233| |H | 232| 1370| 712.857| 287| |O | 368| 7390| 2330.62| 280| |O2 | 190| 804| 482.5| 297| |CO2 | 1.7e+308| -1.7e+308| NaN| 301| |TI | 311| 18663| 3779.23| 271| |VX | -2494| 1137| -63.6667| 271| |VY | -354| 2938| 218.833| 271| |VZ | -7160| 1755| -559.233| 271| |F1I | -3.17e-12| 1.26e-09| 2.06374e-10| 233| |BKGI | -5.01e-11| 1.38e-11| -5.34323e-12| 233| |VPI | -1.34| -0.23| -0.739333| 271| |TOTE | 0| 12469| 2066.38| 280| |TE | 0| 12571| 4635.57| 280| |F1E | -1.93e-07| -3.58e-11| -2.76186e-08| 277| |BKGE | -6.56e-10| -7.84e-12| -8.87179e-11| 277| |VPE | -1.67| 10| 1.91333| 280| |N1 | 1.7e+308| -1.7e+308| NaN| 301| |T1 | 1.7e+308| -1.7e+308| NaN| 301| |N2 | 1.7e+308| -1.7e+308| NaN| 301| |T2 | 1.7e+308| -1.7e+308| NaN| 301| |F1P | -1.36e-09| 3.15e-14| -7.02551e-10| 272| |BKGP | -8.15e-11| 3.15e-14| -3.01589e-11| 272| |VPPE | 1.7e+308| -1.7e+308| NaN| 301| \======================================================================/ /============================================================================\ | | | | | MOST COMMON | NUMBER | | TIME | FIRST | LAST | AVERAGE | INCREMENTS | OF | | COLUMN | VALUE | VALUE | INCREMENT|---------+---------| FLAGS | | | | | | VALUE | COUNT | | |============================================================================| | PDSTIME | 4.33034e+08| 4.33038e+08| 11.96|===================| 0| |----------+ | +----------| 12| 295| | |1979/09/21 23:17:15.031|1979/09/22 00:17:03.035| 12| 1| | |-----------------------|-----------------------| 12| 1| | \============================================================================/