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 = '00687124000' / Observation ID TARG_ID = '687124 ' / 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 = 485555072.80944 / Start time DATE-OBS= '2016-05-21T20:24:32.8' / Start Date TSTOP = 485555320.76992 / Stop time DATE-END= '2016-05-21T20:28:40.8' / 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 = '2016-05-21T20:29:19' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -16.30184 / UTCF at TSTART CHECKSUM= 'dHdNeEdKdEdKdEdK' / HDU checksum updated 2016-05-21T20:29:19 DATASUM = ' 0' / data unit checksum updated 2016-05-21T20:29:19 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 = '00687124000' / Observation ID TARG_ID = '687124 ' / 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 = '2016-05-21T20:29:19' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 485555072.80944 / Start time DATE-OBS= '2016-05-21T20:24:32.8' / Start Date TSTOP = 485555320.76992 / Stop time DATE-END= '2016-05-21T20:28:40.8' / Stop Date UTCFINIT= -16.30184 / 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 = 687124 / Trigger Number XRA_OBJ = 293.731018066406 / [deg] XRT RA location GRB or Object XDEC_OBJ= 21.9039535522461 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 247.960479974747 / 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= -16.30184 / [s] UTC Correction TIME UTCCSEC = -17 / UTC Correction Seconds UTCCSUBS= 34908 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 485555320.84486 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 485555320 / ccsds PacKeT SEConds PKTSUBS = 42243 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'ZLYAZKV4ZKV9ZKV9' / HDU checksum updated 2016-05-21T20:29:19 DATASUM = '1466007602' / data unit checksum updated 2016-05-21T20:29:19 END A7vA<A5+@PܠA{A@+!@AE@/& AӮ@,UA@.OA@/Ap;@+!@A N@0Z- A.^@+!@A$@-A@+ A':@.OA@,UA+]@0Z- Ah@-A/H@,UA&@,UA3S@0G A @*RA6v@/A@+ A:@-AaR@+!@A>A @+!@Au@+ AA@.OAݘ@*RAE@,UAǛ@0Z- AIz%@/& AY@.OAM9@0G A@-AP@-A$@-AT@-A֔F@.OAXr@,UARi@,UA\0@+ A=@-A_@,UAί@)Ach@0G A@+ Agk<@,UAJ@/& Ak)_@,UA @.OAn@)A@+ Ar@-A@+!@A vc@+!@A C@)Az!@-A@.OA} @,UA@)A0@/& A|@+!@A\S@+!@A!:@+ A#&@-A& /@-A(ؙ@)A+@(PA-@+ A0u%@/A2T@-A53H@0Z- A7@.OA:k@/& A<@+!@A?@-AAG@/AD!m@-AFMj@+ AI%+@/AK @(PAN(@,UAPɰ@.OAS,@*RAU@+ AX0f<@+ AZE@1&a@A]4$_@,UA_@/& Ab7@+!@Ad;@-Ag;@-Ai^@*RAl?^@-An=2@*RAqC@+ As@+!@AvF@+!@