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 = '01340514000' / Observation ID TARG_ID = '1340514 ' / 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 = 776256511.0103 / Start time DATE-OBS= '2025-08-07T10:48:31.0' / Start Date TSTOP = 776256616.63838 / Stop time DATE-END= '2025-08-07T10:50:16.6' / 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 = '2025-08-07T10:49:52' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -36.10302 / UTCF at TSTART CHECKSUM= 'nHZTnFZQnFZQnFZQ' / HDU checksum updated 2025-08-07T10:49:52 DATASUM = ' 0' / data unit checksum updated 2025-08-07T10:49:52 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 = '01340514000' / Observation ID TARG_ID = '1340514 ' / 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 = '2025-08-07T10:49:52' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 776256511.0103 / Start time DATE-OBS= '2025-08-07T10:48:31.0' / Start Date TSTOP = 776256616.63838 / Stop time DATE-END= '2025-08-07T10:50:16.6' / Stop Date UTCFINIT= -36.10302 / 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 = 1340514 / Trigger Number XRA_OBJ = 51.434928894043 / [deg] XRT RA location GRB or Object XDEC_OBJ= -47.8737602233887 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.628080010414 / 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= -36.10302 / [s] UTC Correction TIME UTCCSEC = -37 / UTC Correction Seconds UTCCSUBS= 44849 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 776256616.72478 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 776256616 / ccsds PacKeT SEConds PKTSUBS = 36239 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'fn0pgn0mfn0mfn0m' / HDU checksum updated 2025-08-07T10:49:52 DATASUM = '2862347800' / data unit checksum updated 2025-08-07T10:49:52 END A"]QA"](A"^ @pͣA"^,=@ksA"^@m A"^q@jvA"^&#@gMVA"^@kyA"^7Z@kHA"^ @mF% A"^H8@gkPA"^C@cA"^Y@c.A"^@h,A"^k,@kgA"^@_١@A"^|s@eA"^3@f{A"^@hyA"^ [@dAA"^ @h[ A"^ '@^ A"^ D@cA"^ 8@f]A"^ @cpA"^ J.^@[fA"^ э@b:A"^ [t@`FA"^ D@[mA"^ls@`FA"^]@YA"^~@V{A"^Y@\= A"^F@ZvA"^@\aA"^?@] A"^)/o@v{A"^Ҟ@YA"^:u@TA"^U@S4(A"^K@_a@A"^^@T_A"^];@dA"^j@c A"^nG@SpA"^@SpA"^P@ZA"^0@UA"^Ӯ@TA"^v6@X[ A"^e@]F% A"^*@UA"^_@QA"^<K@WkPA"^Ħ"@K*A"^MIR@SA"^@PdA"^^@J:A"^28@YA"^og@UOA"^w@^q A"^@RdA"^ M@IA"^ `@N A"^!@RdA"^!3@IA"^",Jb@UA"^"@QpA"^#=@P(ĠA"^#3H@TA"^$N@SA"^$x@M A"^%`.@RdA"^%]@VtA"^&qa@SpA"^&@] A"^'D@N A"^( J@XA"^(@_% A"^)*@K*A"^)4Y@YA"^*-@J:A"^*z@K*A"^+??@QA"^+ǿ@M A"^,Pb@B@A"^,%@ZvA"^-a@LI A"^-L@TA"^.r@JA"^.@D#A"^/5i@C4(A"^0 ؙ@FA"^0{@WDA"^1@V{A"^1@EA"^2/d@FhA"^2@GkPA"^3@e@SA"^3M@H