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 = '00946256000' / Observation ID TARG_ID = '946256 ' / 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 = 599032593.193 / Start time DATE-OBS= '2019-12-26T05:56:33.2' / Start Date TSTOP = 599032699.3582 / Stop time DATE-END= '2019-12-26T05:58:19.4' / 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 = '2019-12-26T05:58:05' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -24.15262 / UTCF at TSTART CHECKSUM= 'kGdKkDcHkDcHkDcH' / HDU checksum updated 2019-12-26T05:58:05 DATASUM = ' 0' / data unit checksum updated 2019-12-26T05:58:05 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 = '00946256000' / Observation ID TARG_ID = '946256 ' / 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 = '2019-12-26T05:58:05' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 599032593.193 / Start time DATE-OBS= '2019-12-26T05:56:33.2' / Start Date TSTOP = 599032699.3582 / Stop time DATE-END= '2019-12-26T05:58:19.4' / Stop Date UTCFINIT= -24.15262 / 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 = 946256 / Trigger Number XRA_OBJ = 135.876739501953 / [deg] XRT RA location GRB or Object XDEC_OBJ= -40.3062553405762 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 106.165199995041 / TSTOP - TSTART ONTIME = 107.054740905762 / Time on target LIVETIME= 107.054740905762 / Ontime multiplied by DEADC EXPOSURE= 107.054740905762 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -24.15262 / [s] UTC Correction TIME UTCCSEC = -25 / UTC Correction Seconds UTCCSUBS= 42369 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 599032699.4448 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 599032699 / ccsds PacKeT SEConds PKTSUBS = 22240 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= '0m8T3j8T0j8T0j8T' / HDU checksum updated 2019-12-26T05:58:05 DATASUM = '2162693132' / data unit checksum updated 2019-12-26T05:58:05 END AA9AA@dAA_@W/\AAU2@FhAAp@\I AA@QTAA>@Q|AA H@ApAA@M 1 AA&@KyAAɆ@LaAA-l@Nq AA=@VhAA>l@BDXAAU@h2AAO@dAA؛R@XAAa>@aTAA@\VU AAr@b&^AA'g@]F% AA@_a@AA m@jAAM@dAA}@lC AAV@c4(AA.3@cAAc@g/\AA@>@cR"AAr@dAAQ@aTAA'@aTAAb@\aAAn/@`AAt@X[ AA@ltO AAW@` ʠAA @fAA$@cR"AA?S@cAA@dAA0@hAA(9@e1AAAh@c4(AAn@a|AAS@bbRAA۳@] AAdV@`(ĠAA@eAAu4@[fAA@d@`AA@`dAA@`AA)J@bLAA y@ajAAnY@kfAA2@bFAA@gbAACW@eǤAAn@` ʠAAT@bbRAA@@emAAe@g8AA@a|AAw) @dAAA:@fAAoi@d#AA@arAA @x2AA"XO@]F% AA@`AA3@iAAA5@cAAD@eAA͆@dAAV*@gDAẠ@fnAAgo@jAA@dAAx1@dAAX@g>AA@@gkPAAo@h=&AAA@hAA#&@cAAU@ksAA5*@dAAͳ@bFAAFp;@ihAAj@c.AAW@jAAY!@dAAhP@g8AA@f?AAzB@g>AA6@gkPAAf@m AA*@f?AA@eOAA%p@e1