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 is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H TELESCOP= 'SWIFT ' / Telescope (mission) name INSTRUME= 'XRT ' / Instrument name OBS_ID = '00998907000' / Observation ID TARG_ID = '998907 ' / Target ID SEG_NUM = '0 ' / Segment number TIMESYS = 'TT ' / Time system MJDREFI = 51910. / Reference MJD Integer part MJDREFF = 0.00074287037 / Reference MJD fractional TIMEUNIT= 's ' / Time unit for the time header keywords TIERRELA= 1.0E-08 / [s/s] Estimated relative clock rate error TIERABSO= 1. / [s] Estimated absolute clock offset error TSTART = 623639984.41178 / Start time DATE-OBS= '2020-10-06T01:19:44.4' / Start Date TSTOP = 623640232.36924 / Stop time DATE-END= '2020-10-06T01:23:52.4' / Stop Date CLOCKAPP= F / If clock correction are applied (F/T) ORIGIN = 'GSFC ' / Source of FITS file CREATOR = 'TDRSS2FITS V3.21' / Program that created this FITS file TLM2FITS= 'V3.21 ' / Telemetry converter version number DATE = '2020-10-06T01:24:21' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -25.75566 / UTCF at TSTART CHECKSUM= 'hGhRhEgPhEgPhEgP' / HDU checksum updated 2020-10-06T01:24:21 DATASUM = ' 0' / data unit checksum updated 2020-10-06T01:24:21 END XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 18 / width of table in bytes NAXIS2 = 100 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 3 / number of fields in each row TTYPE1 = 'TIME ' / label for field 1 TFORM1 = '1D ' / data format of field: 8-byte DOUBLE TUNIT1 = 's ' / physical unit of field TTYPE2 = 'RATE ' / label for field 2 TFORM2 = '1D ' / data format of field: 8-byte DOUBLE TUNIT2 = 'count/s ' / physical unit of field TTYPE3 = 'XRTMODE ' / label for field 3 TFORM3 = '1I ' / data format of field: 2-byte INTEGER EXTNAME = 'RATE ' / name of this binary table extension MESGNAME= 'XRT_LIGHTCURVE' / Name of the message COMMENT XRTMODE values COMMENT 1=null 2=Short Image 3=Long Image 4=Pile-Up Photodiode COMMENT 5=Low Rate Photodiode 6=Windowed Timing 7= Photon-Counting COMMENT 8=RAW data 9=Bias map 10=Stop TELESCOP= 'SWIFT ' / Telescope (mission) name INSTRUME= 'XRT ' / Instrument name OBS_ID = '00998907000' / Observation ID TARG_ID = '998907 ' / Target ID SEG_NUM = '0 ' / Segment number CREATOR = 'TDRSS2FITS V3.21' / Program that created this FITS file ORIGIN = 'GSFC ' / Source of FITS file TLM2FITS= 'V3.21 ' / Telemetry converter version number EQUINOX = 2000 / Equinox RADECSYS= 'FK5 ' / Coordinates system TIMESYS = 'TT ' / Time system MJDREFI = 51910. / Reference MJD Integer part MJDREFF = 0.00074287037 / Reference MJD fractional TIMEUNIT= 's ' / Time unit for the time header keywords TIERRELA= 1.0E-08 / [s/s] Estimated relative clock rate error TIERABSO= 1. / [s] Estimated absolute clock offset error CLOCKAPP= F / If clock correction are applied (F/T) TIMEREF = 'LOCAL ' / Time reference (barycenter/local) TASSIGN = 'SATELLITE' / Time assigned by clock DATE = '2020-10-06T01:24:21' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 623639984.41178 / Start time DATE-OBS= '2020-10-06T01:19:44.4' / Start Date TSTOP = 623640232.36924 / Stop time DATE-END= '2020-10-06T01:23:52.4' / Stop Date UTCFINIT= -25.75566 / UTCF at TSTART TIMEPIXR= 0. / Bin time beginning=0.0 middle=0.5 end=1. HDUCLASS= 'OGIP ' / Format conforms to OGIP standards HDUCLAS1= 'LIGHTCURVE' / Time ordered data HDUCLAS2= 'TOTAL ' / Source + background HDUCLAS3= 'RATE ' / Data provided as rate NUMBINS = 100 / Number of valid bins in the lightcurve TRIGGER = 998907 / Trigger Number XRA_OBJ = 61.9188766479492 / [deg] XRT RA location GRB or Object XDEC_OBJ= 65.1688842773438 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 247.957460045815 / TSTOP - TSTART ONTIME = 245.580215454102 / Time on target LIVETIME= 245.580215454102 / Ontime multiplied by DEADC EXPOSURE= 245.580215454102 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -25.75566 / [s] UTC Correction TIME UTCCSEC = -26 / UTC Correction Seconds UTCCSUBS= 12217 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 623640232.44484 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 623640232 / ccsds PacKeT SEConds PKTSUBS = 22242 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'X3iHX2fHX2fHX2fH' / HDU checksum updated 2020-10-06T01:24:21 DATASUM = '3005696834' / data unit checksum updated 2020-10-06T01:24:21 END A•45A•kTA•زP@YA•;A•,@#$A•@+ A•Y @)A•ߙ@(PA•l@'A•H@+ A•\}@/A•䝻Z@&U@A•ު@(PA•k@'A•`H@(PA•z%@(PA•j@+ A•#Y@*RA•dI@+!@A•8@-A•(@)A•'@+!@A•h@(PA•b@+!@A•>@+ A•*@'A•kP@% A•,@)A• @,UA•.@)A•o@*RA•v@% A•f{@(PA•2U@$KA•sE@+ A•5i@+ A•%F@'!`A•6#@*RA•w@'!`A•@(PA•@'!`A• 9@,UA• z@'A• @'A• @+!@A•=@+!@A•~@)A•q@+!@A•a@*RA•AQ@-A•A_@*RA•1<@'!`A•!@+ A•E@*RA•*@+ A•@'!`A•@+!@A•H@)A•@'A• ʯy@*RA•" V@'!`A•#L@+!@A•$~g@.OA•%nD@&U@A•'^ @+ A•(PM@&U@A•)=@'!`A•*-@+!@A•,@+!@A•-T @*RA•.@(PA•/@,UA•1۶@'A•2W@,UA•3@+ A•4٪@+!@A•6@,UA•7[]@(PA•8z:@*RA•9in@(PA•;YK@(PA•<_I(@(PA•=9@'A•>(@% A•@"@+ A•Ac@+!@A•B@)A•C@&U@A•E%׈@(PA•Ffe@'A•GA@)A•Hv@'!`A•J)S@+!@A•Kj/@*RA•Lud@'A•MeA@+ A•O-U@+ A•PnDR@*RA•Q4/@+!@A•R$ @+