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 = '01180410000' / Observation ID TARG_ID = '1180410 ' / 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 = 711808682.00948 / Start time DATE-OBS= '2023-07-23T12:38:02.0' / Start Date TSTOP = 711808927.1093 / Stop time DATE-END= '2023-07-23T12:42:07.1' / 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 = '2023-07-23T12:52:07' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -31.69442 / UTCF at TSTART CHECKSUM= '2IiP4GZM2GfM2GZM' / HDU checksum updated 2023-07-23T12:52:07 DATASUM = ' 0' / data unit checksum updated 2023-07-23T12:52:07 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 = '01180410000' / Observation ID TARG_ID = '1180410 ' / 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 = '2023-07-23T12:52:07' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 711808682.00948 / Start time DATE-OBS= '2023-07-23T12:38:02.0' / Start Date TSTOP = 711808927.1093 / Stop time DATE-END= '2023-07-23T12:42:07.1' / Stop Date UTCFINIT= -31.69442 / 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 = 1180410 / Trigger Number XRA_OBJ = 250.350219726562 / [deg] XRT RA location GRB or Object XDEC_OBJ= -5.34744215011597 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 245.099820017815 / TSTOP - TSTART ONTIME = 242.700622558594 / Time on target LIVETIME= 242.700622558594 / Ontime multiplied by DEADC EXPOSURE= 242.700622558594 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -31.69442 / [s] UTC Correction TIME UTCCSEC = -32 / UTC Correction Seconds UTCCSUBS= 15279 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 711808927.24486 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 711808927 / ccsds PacKeT SEConds PKTSUBS = 12243 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'PIAhSF9ZPFAfPF7Z' / HDU checksum updated 2023-07-23T12:52:07 DATASUM = '1438571411' / data unit checksum updated 2023-07-23T12:52:07 END AÅ6«U6¤AÅ6«U8 ÃAÅ6«UF_@bDX AÅ6«V éŽ@"¼@ AÅ6«V’Œ@J²©AÅ6«W/EAÅ6«Y·½Ï@I¹‘àAÅ6«Zø@Gˆ€AÅ6«\9œà@E¼ AÅ6«]zŒ½@F»Î@AÅ6«^»|š@EVsAÅ6«_ülv@Gˆ€AÅ6«a=\S@D½KàAÅ6«b~Kˆ@EVsAÅ6«c¿<@FU´@AÅ6«e+é@DðYAÅ6«fAÅ@FU´@AÅ6«g‚¢@FîÛ`AÅ6«hÂû@F"§@AÅ6«jë[@FU´@AÅ6«kDÚ@D½KàAÅ6«l…Êm@F"§@AÅ6«mÆºI@E‰€ AÅ6«oªÎ@CñÀAÅ6«pHšª@FU´@AÅ6«q‰Š‡@FîÛ`AÅ6«rÊy¼@E#fAÅ6«ti˜@E#fAÅ6«uLYu@Eïš AÅ6«vIR@DðYAÅ6«wÎ9.@E#fAÅ6«y)@G»€AÅ6«zPç@F»Î@AÅ6«{‘Ä@F"§@AÅ6«|Ñø¡@DðYAÅ6«~è}@E¼ AÅ6«SØZ@E¼ AÅ6«€”È6@DW1àAÅ6«Õ·k@E¼ AÅ6«ƒ§H@E‰€ AÅ6«„W—$@F"§@AÅ6«…˜‡©@EVsAÅ6«†Ùw…@EVsAÅ6«ˆgb@D½KàAÅ6«‰[V—@DðYAÅ6«ŠœFt@E‰€ AÅ6«‹Ý6P@FU´@AÅ6«&-@Eïš AÅ6«Ž_ @E‰€ AÅ6« Ž@E#fAÅ6«àöj@DðYAÅ6«’!åŸ@FU´@AÅ6«“bÕ|@EVsAÅ6«”£ÅX@Eïš AÅ6«•äµ5@F"§@AÅ6«—%¥@EVsAÅ6«˜f”î@E‰€ AÅ6«™§„#@E¼ AÅ6«šèt§@DŠ>àAÅ6«œ)d„@E‰€ AÅ6«jTa@FˆÁ@AÅ6«ž«D=@FU´@AÅ6«Ÿì4@FîÛ`AÅ6«¡-#ö@FU´@AÅ6«¢n+@GTõ`AÅ6«£¯@Gî€AÅ6«¤ïóŒ@F"§@AÅ6«¦0ãi@E#fAÅ6«§qÓF@E¼ AÅ6«¨²Ã"@F"§@AÅ6«©ó²W@FˆÁ@AÅ6««4¢4@FU´@AÅ6«¬u’@E#fAÅ6«¶í@FU´@AÅ6«®÷rq@F"§@AÅ6«°8bN@E‰€ AÅ6«±yR*@DðYAÅ6«²ºA_@F»Î@AÅ6«³û1<@D½KàAÅ6«µ