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 = '01180063000' / Observation ID TARG_ID = '1180063 ' / 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 = 711532768.8095 / Start time DATE-OBS= '2023-07-20T07:59:28.8' / Start Date TSTOP = 711532874.42876 / Stop time DATE-END= '2023-07-20T08:01:14.4' / 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 = '2023-07-20T08:00:49' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -31.67554 / UTCF at TSTART CHECKSUM= 'kHeMmFZMkFdMkFZM' / HDU checksum updated 2023-07-20T08:00:49 DATASUM = ' 0' / data unit checksum updated 2023-07-20T08:00:49 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 = '01180063000' / Observation ID TARG_ID = '1180063 ' / 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 = '2023-07-20T08:00:49' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 711532768.8095 / Start time DATE-OBS= '2023-07-20T07:59:28.8' / Start Date TSTOP = 711532874.42876 / Stop time DATE-END= '2023-07-20T08:01:14.4' / Stop Date UTCFINIT= -31.67554 / 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 = 1180063 / Trigger Number XRA_OBJ = 48.0701751708984 / [deg] XRT RA location GRB or Object XDEC_OBJ= 59.8954315185547 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.619260072708 / 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= -31.67554 / [s] UTC Correction TIME UTCCSEC = -32 / UTC Correction Seconds UTCCSUBS= 16223 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 711532874.54172 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 711532874 / ccsds PacKeT SEConds PKTSUBS = 27086 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'aEaecBVcaBZcaBZc' / HDU checksum updated 2023-07-20T08:00:49 DATASUM = '1579406891' / data unit checksum updated 2023-07-20T08:00:49 END A4pgA4ptA4p@jA4qqZ@q'A4q7@tA4r@rCA4s B@m A4s@jXA4tL@iA4t+@n5 A4u-@gJA4ur2@p(ĠA4v?b@lI A4vǷ@spA4wP[@r@A4wH@n A4xa@n A4xC@m 1 A4yr.@h,A4y]@f?A4z,@d#A4{ @cR"A4{sC@ltO A4|@pA4|@p(ĠA4}/\)@m 1 A4}X@jXA4~@@n A4~E@o@A4Q>@jvA4ڋn@hA4c-@r:A4$@vzA4ttT@pFA4@md A4c@sA4\@r7A4@eA4I@jA4Ex@gkPA40@iA4/@v?A4B.^@tA4э@oa@A4St@laA4D@iA4ds@pܠA4]@k*A4v@k A4Y@jУA4F@qpA4@jУA4?@qpA4!/o@iA4Ҟ@h[ A42u@fA4U@iA4C@lI A4^@qTA4U@rDXA4ݤj@p띠A4fG@r=A4@pFA4wP@m(+ A40@m A4Ӯ@c.A4v@gMVA4e@j:A4"@p ʠA4_@pdA44@vtA4z@l= A4EH@h,A4@iJA4Va@dA41@e1A4gԿ@eA4w@kmA4yv@p7A4@ksA4`@l8[A4\@gDA4@b:A4$I@b@A4@_@A45q@b@A41@n A4F(@q6A4xW@p(ĠA4X@qjA4@hA4ia=@lVU A4@c A4z@hA4J#@g8A4R@psA4@qcA43 @t_A4%9@pdA4yh@hy