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 = '01223072000' / Observation ID TARG_ID = '1223072 ' / 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 = 735222359.41352 / Start time DATE-OBS= '2024-04-19T12:25:59.4' / Start Date TSTOP = 735222465.01356 / Stop time DATE-END= '2024-04-19T12:27:45.0' / 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 = '2024-04-19T12:27:30' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -33.2977 / UTCF at TSTART CHECKSUM= 'fFeViEcTfEcTfEcT' / HDU checksum updated 2024-04-19T12:27:30 DATASUM = ' 0' / data unit checksum updated 2024-04-19T12:27:30 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 = '01223072000' / Observation ID TARG_ID = '1223072 ' / 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 = '2024-04-19T12:27:30' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 735222359.41352 / Start time DATE-OBS= '2024-04-19T12:25:59.4' / Start Date TSTOP = 735222465.01356 / Stop time DATE-END= '2024-04-19T12:27:45.0' / Stop Date UTCFINIT= -33.2977 / 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 = 1223072 / Trigger Number XRA_OBJ = 325.866973876953 / [deg] XRT RA location GRB or Object XDEC_OBJ= 4.22848701477051 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.600040078163 / TSTOP - TSTART ONTIME = 107.359703063965 / Time on target LIVETIME= 107.359703063965 / Ontime multiplied by DEADC EXPOSURE= 107.359703063965 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -33.2977 / [s] UTC Correction TIME UTCCSEC = -34 / UTC Correction Seconds UTCCSUBS= 35115 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 735222465.0448 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 735222465 / ccsds PacKeT SEConds PKTSUBS = 2240 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'DLSpDISmDISmDISm' / HDU checksum updated 2024-04-19T12:27:30 DATASUM = '731571628' / data unit checksum updated 2024-04-19T12:27:30 END AM+9AM+XAM,3@rbRAM,6@k*AM-D@gbAM-}@h2AM.V@o@AM.@o@AM/ge@m AM/@iAM0x@md AM1N@kfAM1k@nq AM2@n AM27@pAM3#Q@sAM3}@uAM45 @vlAM4@xAM5Fff@s.AM5 @n AM6W@qyAM6OL@n AM7h|@m AM7@r7AM8z7@ihAM9ں@m(+ AM9}@cAM: q@fAM:à@`AM;%f@bDXAM; @^q AM<6@ZAMY8@a|AM>@YAM?j~R@[fAM?!@UǤAM@{ı@R4AMAg@R4AMA g@VhAMB@VAMBP@PdAMC&M@R@AMC}@SAMD89@QpAMD3@T_AMEIc@GkPAME"@ZvAMFZ@QpAMFhI@UAMGl x@N AMG@IAMH}Q/@IAMI@R@AMI@FAMJ9m@F{AMJܜ@K*AMK(@F{AMK"S@DAML9ł@LI AMLh@BDXAMMK @DAMMӮh@RdAMN\Q@K*AMN@BDXAMOmN@IAMO:~@RLAMP~ݭ@ATAMQ4@PAMQ#d@M 1 AMRƓ@PܠAMRi@CAMS* J@Oa@AMSy@EAMT;R@CAMT0@C4(AMUL_@2@AMU;@IAMV]@M 1 AMVE@ATAMWo$t@- AMW@R4AMXj+@RdAMY Z@7kPAMY@/١@AMZS@6{AMZ@@/١@AM[+@HAM[;O@UAM\<@- AM\Ł@TAM]N$5@1pAM]e@K*AM^_j@- AM^ @G8AM_pK@9JAM_Sz@@ܠ