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 = '00843211000' / Observation ID TARG_ID = '843211 ' / 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 = 551202746.80958 / Start time DATE-OBS= '2018-06-20T15:52:26.8' / Start Date TSTOP = 551202852.3822 / Stop time DATE-END= '2018-06-20T15:54:12.4' / 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 = '2018-06-20T15:53:58' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -21.1365 / UTCF at TSTART CHECKSUM= 'hLfPhIfPhIfPhIfP' / HDU checksum updated 2018-06-20T15:53:58 DATASUM = ' 0' / data unit checksum updated 2018-06-20T15:53:58 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 = '00843211000' / Observation ID TARG_ID = '843211 ' / 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 = '2018-06-20T15:53:58' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 551202746.80958 / Start time DATE-OBS= '2018-06-20T15:52:26.8' / Start Date TSTOP = 551202852.3822 / Stop time DATE-END= '2018-06-20T15:54:12.4' / Stop Date UTCFINIT= -21.1365 / 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 = 843211 / Trigger Number XRA_OBJ = 357.5185546875 / [deg] XRT RA location GRB or Object XDEC_OBJ= -57.9580078125 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.572620034218 / 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= -21.1365 / [s] UTC Correction TIME UTCCSEC = -22 / UTC Correction Seconds UTCCSUBS= 43175 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 551202852.445 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 551202852 / ccsds PacKeT SEConds PKTSUBS = 22250 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'Z2a3i2V0Z2a0f2U0' / HDU checksum updated 2018-06-20T15:53:58 DATASUM = '2842490244' / data unit checksum updated 2018-06-20T15:53:58 END AmWgQAmWݞwpAmW͟@saAmWko~@rbRAmW@wbAmW|@sAmWXd@rLAmW@pAmW@rIAmWAJ@uAmW'@v{AmWⰇ@wDAmW9*0@yAmW̸@v}AmWJo?@vwAmWo@u@AmW[@tAmWX@sAmWl@rqOAmW@sAmW~A @r5[AmW@r4AmW菆@pAmW)J@tAmW@qmAmW)o@rqOAmW0@qvAmW:@lC AmWW?@jAmWKn@qTAmWԝ@s AmW]@@jAmW@nq AmWn@lI AmW) @iAmW:@l8[AmWn@m AmWI@iAmWx@m AmWW@h,AmW*/@ftAmW^@gMVAmWAmW^S@g8AmWm@iAmWp @iAmW9@dAmWV@gbAmW H@bDXAmWx@cAmW?@eAmW.@cAmW,^@bLAmW'@aTAmW=@c.AmWm@^5 AmWO@avAmW׳@d}AmW`V@b4AmW @` ʠAmWq9@`AmW?h@cpAmWH@arAmX w@b&^AmX'@`AmX@^ AmXm]@`AmX.@` ʠAmX@] 1 AmX?VC@_a@AmX@k*AmXP@`ܠAmX>@aTAmXa@a6AmX8@emAmXs'g@eAmXʗ@^ AmXlv@a6AmX @_@AmX@cAmX V@` ʠAmX @ksAmX /@aAmX >B@]F% AmX @r@] 1 AmX Ƀ@ZAmX R&@XAmX ɰ@_@AmX cl@XAmX g@WkPAmXt@SpAmXU@WkPAmX@UOAmX@SAmX>@YJAmX3@^ AmX@N