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 = '01281241000' / Observation ID TARG_ID = '1281241 ' / 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 = 758532968.0094 / Start time DATE-OBS= '2025-01-14T07:36:08.0' / Start Date TSTOP = 758533073.62716 / Stop time DATE-END= '2025-01-14T07:37:53.6' / 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 = '2025-01-14T07:37:26' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -34.89264 / UTCF at TSTART CHECKSUM= 'kFgLlEZJkEfJkEZJ' / HDU checksum updated 2025-01-14T07:37:26 DATASUM = ' 0' / data unit checksum updated 2025-01-14T07:37:26 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 = '01281241000' / Observation ID TARG_ID = '1281241 ' / 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 = '2025-01-14T07:37:26' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 758532968.0094 / Start time DATE-OBS= '2025-01-14T07:36:08.0' / Start Date TSTOP = 758533073.62716 / Stop time DATE-END= '2025-01-14T07:37:53.6' / Stop Date UTCFINIT= -34.89264 / 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 = 1281241 / Trigger Number XRA_OBJ = 166.576965332031 / [deg] XRT RA location GRB or Object XDEC_OBJ= -15.1359548568726 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.617759943008 / 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= -34.89264 / [s] UTC Correction TIME UTCCSEC = -35 / UTC Correction Seconds UTCCSUBS= 5368 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 758533073.64482 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 758533073 / ccsds PacKeT SEConds PKTSUBS = 32241 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'ZWVadWVYZWVabWVW' / HDU checksum updated 2025-01-14T07:37:26 DATASUM = '3813343277' / data unit checksum updated 2025-01-14T07:37:26 END Aƛ%4Aƛ%8 $Aƛ%@_% Aƛ% N@P(ĠAƛ%[@O١@Aƛ%@G8Aƛ%4@RdAƛ%-D@RdAƛ%@PܠAƛ%>@K*Aƛ%.I@PAƛ%O@LI Aƛ%t@QpAƛ%a/@RLAƛ%^@UǤAƛ%r]@SAƛ%@XAƛ%@FhAƛ% Ft@IJAƛ%@Z:Aƛ%@GkPAƛ%/Z@CAƛ%.҉@<aAƛ%u@W/\Aƛ%@@J:Aƛ%ȼ@Nq Aƛ%Q_F@ATAƛ%u@J:Aƛ%b@@ܠAƛ%H,@= 1 Aƛ%s[@D#Aƛ%@VtAƛ%ą1@FhAƛ% A@= Aƛ%Ŗwp@LI Aƛ%@= 1 Aƛ%Ƨ@= 1 Aƛ%0`@<aAƛ%ǹ.@GkPAƛ%A@6{Aƛ%I@BDXAƛ%R@<aAƛ%ېC@PdAƛ%d2@GkPAƛ%@1pAƛ%uy)@BDXAƛ%X@([ Aƛ%̆@3Aƛ%b@4Aƛ%͘@;*Aƛ% m@GkPAƛ%ΩK@$Aƛ%1@M Aƛ%Ϻ@;*Aƛ%C4@VhAƛ%ײ@N Aƛ%Tz@&{Aƛ%i@3Aƛ%e@,aAƛ%do@> Aƛ%w@ATAƛ%&@8[ Aƛ%ԈMU@FAƛ%@3Aƛ%ՙ @IJAƛ%"6;@- Aƛ%֪j@<aAƛ%3|@?١@Aƛ%׼!@,aAƛ%DP@;*Aƛ%e@&{Aƛ%V W@$Aƛ%ޫ@@ܠAƛ%gO@3Aƛ%=@([ Aƛ%x@BDXAƛ%7@4Aƛ%܉#@7kPAƛ%~R@,aAƛ%ݛ @9JAƛ%# @ApAƛ%ެg8@\aAƛ%5 g@QTAƛ%߽@V?Aƛ%FP@UAƛ%@R4Aƛ%W}@RDXAƛ%9@RdAƛ%h@Nq Aƛ%c@G8Aƛ%z"@YJAƛ%@FAƛ%h@@dAƛ% x@@dAƛ%圯O@UAƛ%%R~@W/\Aƛ%@PAƛ%65@RDXAƛ%;d@T_Aƛ%Gޔ@S