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 = '00958141000' / Observation ID TARG_ID = '958141 ' / 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 = 604207614.20864 / Start time DATE-OBS= '2020-02-24T03:26:54.2' / Start Date TSTOP = 604207862.21518 / Stop time DATE-END= '2020-02-24T03:31:02.2' / 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 = '2020-02-24T03:31:56' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -24.488 / UTCF at TSTART CHECKSUM= 'iIheiHfZiHfbiHfZ' / HDU checksum updated 2020-02-24T03:31:56 DATASUM = ' 0' / data unit checksum updated 2020-02-24T03:31:56 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 = '00958141000' / Observation ID TARG_ID = '958141 ' / 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 = '2020-02-24T03:31:56' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 604207614.20864 / Start time DATE-OBS= '2020-02-24T03:26:54.2' / Start Date TSTOP = 604207862.21518 / Stop time DATE-END= '2020-02-24T03:31:02.2' / Stop Date UTCFINIT= -24.488 / 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 = 958141 / Trigger Number XRA_OBJ = 248.804260253906 / [deg] XRT RA location GRB or Object XDEC_OBJ= 41.6734924316406 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 248.006540060043 / TSTOP - TSTART ONTIME = 245.580215454102 / Time on target LIVETIME= 245.580215454102 / Ontime multiplied by DEADC EXPOSURE= 245.580215454102 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -24.488 / [s] UTC Correction TIME UTCCSEC = -25 / UTC Correction Seconds UTCCSUBS= 25600 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 604207862.32762 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 604207862 / ccsds PacKeT SEConds PKTSUBS = 16381 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'SDNAVBM4SBM9SBM9' / HDU checksum updated 2020-02-24T03:31:56 DATASUM = '1924982385' / data unit checksum updated 2020-02-24T03:31:56 END AAQA&@VA%VA{@0Z- Ak@0G AE[@-AJ@/A:@1&a@A *@/& A Iv@/A @-A @/& A d@1`AL@@,UA@-AθR@/& A/@,UAP @0Z- A@*RAw@-Af@0Z- ATV@+ AF@.OA5@/& A%@,UAX@.OA}@1&a@A Z@+!@A"@0G A#[k@1&a@A$H@*RA%ݴ$@0G A'@+ A(_@/A)k@+ A*rG@+ A,"a|@-A-cQY@*RA.A5@.OA/1@'A1& G@+!@A2g#@/A3@1{@A4@(PA6)@)A7j@.OA8@.OA9쮧@+ A;-@-Amr@,UA@1\@+!@AArL@,UAB<`@-AC,=@+!@AE5q@-AFv N@,UAG+@(PAH`@,UAJ8ٔ@+!@AKyq@/ALN@/AM@/& AO<_@*RAP}<@+!@AQx@*RARgM@*RAT@W*@+ AUG@)AV6@0G AX&@.OAYD@+!@AZ@+!@A[@,UA]@+!@A^GԿ@-A_Ĝ@.OA`ɳ@/Ab @+!@AcK@,UAdf@-Aeq@,UAga@+ AhOQ@(PAi@@,UAj0@(PAl @.OAmSw@+!@An@.OAo@+ Aqe@'!`ArVB@+!@Asw@*RAtخS@+ Av0@(PAwZe@(PAx}A@)Aym@*R