SIMPLE = T / file does conform to FITS standard BITPIX = 8 / number of bits per data pixel NAXIS = 0 / number of data axes EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365. COMMENT Contact the NASA Science Office of Standards and Technology for the COMMENT FITS Definition document #100 and other FITS information. ORIGIN = 'HEASARC/GSFC' / origin of FITS file CREATOR = 'LFITS ' / Name of FITS Generating Code TELESCOP= 'EXOSAT ' / Telescope (mission) name INSTRUME= 'CMA1 ' / Instrument (detector) name CATFILE = 'ex830622_1102_1839psd1.cat' / Associated catalog filename FILTER = '4Lx ' / Filter wheel position BKGFILTR= 'OFF ' / Background rejection filter FIELDVW = 'ALL ' / Background rejection filter OFF OBCMODE = 'LDIR ' / Application Program DATAMODE= 'COMB2_ND_613_39__*' / OBC submode and LE settings OBJECT = 'CAS A ' / Source ID RA_PNT = 3.50249783E+02 / S/C Pointing RA (degrees) DEC_PNT = 5.85429039E+01 / S/C Pointing DEC (degrees) ROLLANG = 2.19379720E+01 / S/C Roll angle (degrees) RA_NOM = 3.50252233E+02 / Nominal RA (degrees) DEC_NOM = 5.85454402E+01 / Nominal DEC (degrees) NORTHANG= 2.01935882E+02 / North angle (degrees) EQUINOX = 1950.0 / Epoch of Coordinate System RADECSYS= 'FK4 ' / WC System OBS_MODE= 'POINTING' / observing mode E_MIN = 5.000E-02 / Energy Min E_MAX = 2.500E+00 / Energy Max EUNIT = 'keV ' / Energy unit MINWAIT = 7.5000E-01 / Minimum wait time between output buffers (s) DATE-OBS= '23/06/83' / Date of observation start (dd/mm/yy) TIME-OBS= '06:08:34' / Time of observation start (hh:mm:ss) DATE-END= '23/06/83' / Date of observation stop (dd/mm/yy) TIME-END= '09:10:02' / Time of observation stop (hh:mm:ss) MJDREF = 4.42390E+04 / Reference time in MJD TIMESYS = '1980 1 1 00:00:00' / Reference time in YYYY MM DD hh:mm:ss TSTART = 109663714.0 / Start time from TIMESYS in sec TSTOP = 109674602.0 / Stop time from TIMESYS in sec TIMEUNIT= 's ' / unit of time: sec TELAPSE = 10889 / Observation length (s) DATE = '17/07/98' / FITS file creation date (dd/mm/yy) STAR_PNT= 'STR2 ' / 2 star pointing mode SEQNUM = 100006 / Sequence Number CHECKSUM= 'MA6EO56CMA6CM56C' / encoded HDU checksum updated on 17/07/98 DATASUM = ' 0' / data unit checksum updated on 17/07/98 END XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 48 / width of table in bytes NAXIS2 = 3 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 6 / number of fields in each row TTYPE1 = 'ROLL_CORR' / label for field 1 TFORM1 = '1D ' / data format of field: 8-byte DOUBLE TUNIT1 = 'arcsec ' / physical unit of field TTYPE2 = 'PITCH_CORR' / label for field 2 TFORM2 = '1D ' / data format of field: 8-byte DOUBLE TUNIT2 = 'arcsec ' / physical unit of field TTYPE3 = 'YAW_CORR' / label for field 3 TFORM3 = '1D ' / data format of field: 8-byte DOUBLE TUNIT3 = 'arcsec ' / physical unit of field TTYPE4 = 'ROLL ' / label for field 4 TFORM4 = '1D ' / data format of field: 8-byte DOUBLE TUNIT4 = 'arcsec ' / physical unit of field TTYPE5 = 'PITCH ' / label for field 5 TFORM5 = '1D ' / data format of field: 8-byte DOUBLE TUNIT5 = 'arcsec ' / physical unit of field TTYPE6 = 'YAW ' / label for field 6 TFORM6 = '1D ' / data format of field: 8-byte DOUBLE TUNIT6 = 'arcsec ' / physical unit of field EXTNAME = 'ATT_MAT ' / name of this binary table extension CATFILE = 'ex830622_1102_1839psd1.cat' / Associated catalog filename DATE-OBS= '23/06/83' / Date of observation start (dd/mm/yy) TIME-OBS= '06:08:34' / Time of observation start (hh:mm:ss) DATE-END= '23/06/83' / Date of observation stop (dd/mm/yy) TIME-END= '09:10:02' / Time of observation stop (hh:mm:ss) MJDREF = 4.42390E+04 / Reference time in MJD TIMESYS = '1980 1 1 00:00:00' / Reference time in YYYY MM DD hh:mm:ss TSTART = 109663714.0 / Start time from TIMESYS in sec TSTOP = 109674602.0 / Stop time from TIMESYS in sec TIMEUNIT= 's ' / unit of time: sec TELAPSE = 10889 / Observation length (s) ATT_BEG = 45507.5104 / Start of valid period for table (MJD) ATT_END = 45508.7778 / End of valid period for table (MJD) SECFSH = 2417.16569821 / Rads to FSS High Gain Units (256/3") SECFSL = 38674.65117133 / Rads to FSS Low Gain Units (16/3") FSS_MISR= 0.16300 / FSS Misalignment in Roll (degrees) FSS_MISP= 0.02830 / FSS Misalignment in Pitch (degrees) LEST_MSP= -1.87500E-03 / Misalignment LE1 and ST in Pitch (degrees) LEST_MSY= 2.13333E-03 / Misalignment LE1 and ST in Yaw (degrees) RA_GS1 = 3.50462158E+02 / Guide Star 1 RA (degrees) DEC_GS1 = 5.72608490E+01 / Guide Star 1 DEC (degrees) RA_GS2 = 3.50075439E+02 / Guide Star 2 RA (deg) =0 if STR1 mode DEC_GS2 = 5.98591156E+01 / Guide Star 2 DEC (deg) =0 if STR1 mode STAR_PNT= 'STR2 ' / 2 star pointing mode COMMENT Components of unit vectors defining the Roll, Pitch and Yaw COMMENT axes of the star tracker attitude reference axis set. Presented COMMENT in MESD 1950.0 system of coordinates. ROLL_CORR, PITCH_CORR and COMMENT YAW_CORR were corrected for Fine Sun Sensor error and 5 arcsec pitch COMMENT (if after Sep. 15, 1983). ROLL, PITCH and YAW were taken from the COMMENT Auxiliary Data File. SEQNUM = 100006 / Sequence Number CHECKSUM= 'bUCkeSBkbSBkbSBk' / encoded HDU checksum updated on 17/07/98 DATASUM = '2673443983' / data unit checksum updated on 17/07/98 END XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 51 / width of table in bytes NAXIS2 = 1356 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 13 / number of fields in each row TTYPE1 = 'TIME ' / Time of HK record corrected to ground TFORM1 = '1D ' / data format of field: 8-byte DOUBLE TUNIT1 = 's ' / physical unit of field TTYPE2 = 'SHFTIME ' / Short History File Key of HK record TFORM2 = '1J ' / data format of field: 4-byte INTEGER TUNIT2 = 's ' / physical unit of field TTYPE3 = 'GNDTIME ' / Ground station time TFORM3 = '1J ' / data format of field: 4-byte INTEGER TUNIT3 = 's ' / physical unit of field TTYPE4 = 'MUTIME ' / Microseconds of GNDTIME over integer value TFORM4 = '1J ' / data format of field: 4-byte INTEGER TTYPE5 = 'SCC ' / Spacecraft Clock in units of 2^-14 seconds TFORM5 = '1J ' / data format of field: 4-byte INTEGER TTYPE6 = 'ROLL ' / Error in roll from nominal value TFORM6 = '1E ' / data format of field: 4-byte REAL TUNIT6 = 'arcsec ' / physical unit of field TTYPE7 = 'PITCH ' / Error in pitch from nominal value TFORM7 = '1E ' / data format of field: 4-byte REAL TUNIT7 = 'arcsec ' / physical unit of field TTYPE8 = 'YAW ' / Error in yaw from nominal value TFORM8 = '1E ' / data format of field: 4-byte REAL TUNIT8 = 'arcsec ' / physical unit of field TTYPE9 = 'ICFL ' / HK Parameter A529 TFORM9 = '1I ' / data format of field: 2-byte INTEGER TTYPE10 = 'ICRS1 ' / HK Parameter A528 TFORM10 = '1I ' / data format of field: 2-byte INTEGER TTYPE11 = 'SUNPRE ' / Sun Presence Indicator A103 TFORM11 = '1L ' / data format of field: 1-byte LOGICAL TTYPE12 = 'IGAIN ' / FSS Gain 1=high gain(coarse) 0=low gain(fine) TFORM12 = '1I ' / data format of field: 2-byte INTEGER TTYPE13 = 'FSS_ROLL' / Actual Roll Error from FSS TFORM13 = '1D ' / data format of field: 8-byte DOUBLE TUNIT13 = 'deg ' / physical unit of field EXTNAME = 'ATT_DEV ' / name of this binary table extension DATE-OBS= '23/06/83' / Date of observation start (dd/mm/yy) TIME-OBS= '06:08:34' / Time of observation start (hh:mm:ss) DATE-END= '23/06/83' / Date of observation stop (dd/mm/yy) TIME-END= '09:10:02' / Time of observation stop (hh:mm:ss) MJDREF = 4.42390E+04 / Reference time in MJD CLOCKAPP= F / Barycentric Correction T if applied TIMESYS = '1980 1 1 00:00:00' / Reference time in YYYY MM DD hh:mm:ss TSTART = 109663714.0 / Start time from TIMESYS in sec TSTOP = 109674602.0 / Stop time from TIMESYS in sec TIMEUNIT= 's ' / unit of time: sec TELAPSE = 10889 / Observation length (s) TIMEREF = 'LOCAL ' / reference frame for the times TASSIGN = 'MADRID ' / place of time assigment HDUCLASS= 'OGIP ' / Office of Guest Investigator Programs HDUCLAS1= 'TEMPORALDATA' / HDUCLAS2= 'HKP ' / Housekeeping Parameters CATFILE = 'ex830622_1102_1839psd1.cat' / Associated catalog filename COMMENT Roll, Pitch and Yaw are parameters A511-513 from the housekeeping COMMENT data file. They are departures of the Roll, Pitch and Yaw axes from COMMENT the nominal values given in ATT_MAT table. ICFL, ICRS1, SUNPRE, IGAIN COMMENT and FSS_ROLL are used to correct the attitude matrix when the pointing COMMENT mode is STR1 (1 guide star + Sun) SECFSH = 2417.16569821 / Rads to FSS High Gain Units (256/3") SECFSL = 38674.65117133 / Rads to FSS Low Gain Units (16/3") FSS_MISR= 0.16300 / FSS Misalignment in Roll (degrees) FSS_MISP= 0.02830 / FSS Misalignment in Pitch (degrees) LEST_MSP= -1.87500E-03 / Misalignment LE1 and ST in Pitch (degrees) LEST_MSY= 2.13333E-03 / Misalignment LE1 and ST in Yaw (degrees) RA_GS1 = 3.50462158E+02 / Guide Star 1 RA (degrees) DEC_GS1 = 5.72608490E+01 / Guide Star 1 DEC (degrees) RA_GS2 = 3.50075439E+02 / Guide Star 2 RA (deg) =0 if STR1 mode DEC_GS2 = 5.98591156E+01 / Guide Star 2 DEC (deg) =0 if STR1 mode STAR_PNT= 'STR2 ' / 2 star pointing mode SEQNUM = 100006 / Sequence Number CHECKSUM= 'dOHfgNGcdNGcdNGc' / encoded HDU checksum updated on 17/07/98 DATASUM = '2168149168' / data unit checksum updated on 17/07/98 END