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 = '01071769000' / Observation ID TARG_ID = '1071769 ' / 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 = 652371236.414 / Start time DATE-OBS= '2021-09-03T14:13:56.4' / Start Date TSTOP = 652371342.02756 / Stop time DATE-END= '2021-09-03T14:15:42.0' / 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 = '2021-09-03T14:22:12' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -27.66306 / UTCF at TSTART CHECKSUM= 'oOaTpNZSoNaSoNWS' / HDU checksum updated 2021-09-03T14:22:12 DATASUM = ' 0' / data unit checksum updated 2021-09-03T14:22:12 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 = '01071769000' / Observation ID TARG_ID = '1071769 ' / 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 = '2021-09-03T14:22:12' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 652371236.414 / Start time DATE-OBS= '2021-09-03T14:13:56.4' / Start Date TSTOP = 652371342.02756 / Stop time DATE-END= '2021-09-03T14:15:42.0' / Stop Date UTCFINIT= -27.66306 / 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 = 1071769 / Trigger Number XRA_OBJ = 307.960418701172 / [deg] XRT RA location GRB or Object XDEC_OBJ= 37.400577545166 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.613559961319 / 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= -27.66306 / [s] UTC Correction TIME UTCCSEC = -28 / UTC Correction Seconds UTCCSUBS= 16847 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 652371342.04482 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 652371342 / ccsds PacKeT SEConds PKTSUBS = 2241 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'Re7HUZ69Rb6ERZ69' / HDU checksum updated 2021-09-03T14:22:12 DATASUM = '165261166' / data unit checksum updated 2021-09-03T14:22:12 END Aq24Aq2kAq2S@h[ Aq2=@X[ Aq2ƚ,@dAq2O=\@b:Aq2@`Aq2`@cAq2&B@lVU Aq2qq@jУAq2l@jУAq2(@cAq2 W@pdAq2U@avAq2@cAq2@f?Aq2.?@g8Aq2C@aTAq2?s@h=&Aq2(@`Aq2P@bLAq2nY@cR"Aq2b@Z:Aq2괷@Z:Aq2sW@`dAq2@bLAq2@gDAq2 @@YAq2@^q Aq2+@^ Aq2*Z@`dAq2/@\= Aq2p@_@Aq2A@@WkPAq2ɶp@VtAq2RY@WDAq2&@avAq2cV@b&^Aq2B@RLAq2t@XAq2<@VtAq2,@c4(Aq2B@n Aq2rq@m(+ Aq2 @md Aq2(@aAq21[W@eAq2@kfAq2B@hyAq2D@bdAq2Sm@`FAq2܊@YJAq2e-@[yAq2@`Aq2vt*@pUAq2@ZAq2@VhAq2]@X,Aq2?@bFAq2!n@emAq2E@O١@Aq22%@WkPAq2T@ZAq2D/@_a@Aq2 @`Aq2Uu:@[fAq2@b@Aq2fA@`Aq2_p@aAq2x@b@Aq2'@d#Aq2HV@dAq2@`Aq2@arAq2#1<@qcAq2k@cAq24w@ksAq2@bbRAq2E@YAq2`@b4Aq2W@cpAq2ߦ@eOAq2hJ@m Aq2>@s1Aq2y@o@Aq22@hAq2$@p띠Aq2yS@q'Aq2@dAq2$@gJAq2b@^ Aq26@ltO Aq2¾?@aAq2GK@b&^Aq2@d}Aq2X%@YJAq25T@aAq2i؄@] Aq2{ @`Aq2{:@[f