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 = '01216907000' / Observation ID TARG_ID = '1216907 ' / 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 = 730337769.3936 / Start time DATE-OBS= '2024-02-22T23:36:09.4' / Start Date TSTOP = 730337874.9875 / Stop time DATE-END= '2024-02-22T23:37:55.0' / 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 = '2024-02-22T23:37:27' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -32.96294 / UTCF at TSTART CHECKSUM= 'nDgMpCZJnCfJnCZJ' / HDU checksum updated 2024-02-22T23:37:27 DATASUM = ' 0' / data unit checksum updated 2024-02-22T23:37:27 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 = '01216907000' / Observation ID TARG_ID = '1216907 ' / 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 = '2024-02-22T23:37:27' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 730337769.3936 / Start time DATE-OBS= '2024-02-22T23:36:09.4' / Start Date TSTOP = 730337874.9875 / Stop time DATE-END= '2024-02-22T23:37:55.0' / Stop Date UTCFINIT= -32.96294 / 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 = 1216907 / Trigger Number XRA_OBJ = 245.252532958984 / [deg] XRT RA location GRB or Object XDEC_OBJ= -15.7307004928589 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.593899965286 / 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= -32.96294 / [s] UTC Correction TIME UTCCSEC = -33 / UTC Correction Seconds UTCCSUBS= 1853 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 730337875.05834 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 730337875 / ccsds PacKeT SEConds PKTSUBS = 2917 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'KTIAMR9AKRGAKR9A' / HDU checksum updated 2024-02-22T23:37:27 DATASUM = '4038027376' / data unit checksum updated 2024-02-22T23:37:27 END Aa|A8A0<@`A"@`AA@A%@AR@ Ak@`Ad@T`A@D;AuTv@A@۔A@A>@Iq@A@DA @7A&@A1q@"Al@ AC@`A˲W@3ATU@`A@X`A e=@kA >l@.vA v@A #@TA 'R@gDA ʂ@ۺ`A m @tA "8@C%A h@A 3V@Z A @- A DN@nA ?}@l7 A U@{9A ޅ4@zA g(c@}. A @}. A xn@z A I@z:A @yA W@vlA /@vqA #@uA ?@r=A 4@sA @qA F(@q6A @mF% A Wn@s.A @lVU A h@n A X@qrA y@oa@A @m(+ A @@kHA ~@lI A @hA %)@hA d@lVU A 6o@iA @f]A GJ@jA Xy@j:A X@h,A 0@eOA jA_@dA @cpA {@bFA *E@_@A u@dAA p@eA +@e1A &[@dA Y@eA 7@f!A A@a6A IBp@`A @bLA Z'@c A +V@_@A k@ZA q @] 1 A !}<@apA "@]F% A "Y@ajA #"@aA #@`FA $(B@`ܠA $@fA %97@f?A %+@^ A &J@h2A &r@_@A '\@\aA '@_a@A (m[@aA (@[m