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 = '00971846000' / Observation ID TARG_ID = '971846 ' / 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 = 611008495.80952 / Start time DATE-OBS= '2020-05-12T20:34:55.8' / Start Date TSTOP = 611008601.40366 / Stop time DATE-END= '2020-05-12T20:36:41.4' / 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 = '2020-05-12T20:36:23' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -24.9297 / UTCF at TSTART CHECKSUM= 'jEjUmDiSjDiSjDiS' / HDU checksum updated 2020-05-12T20:36:23 DATASUM = ' 0' / data unit checksum updated 2020-05-12T20:36:23 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 = '00971846000' / Observation ID TARG_ID = '971846 ' / 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 = '2020-05-12T20:36:23' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 611008495.80952 / Start time DATE-OBS= '2020-05-12T20:34:55.8' / Start Date TSTOP = 611008601.40366 / Stop time DATE-END= '2020-05-12T20:36:41.4' / Stop Date UTCFINIT= -24.9297 / 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 = 971846 / Trigger Number XRA_OBJ = 7.39101505279541 / [deg] XRT RA location GRB or Object XDEC_OBJ= -2.20180630683899 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.594140052795 / 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= -24.9297 / [s] UTC Correction TIME UTCCSEC = -25 / UTC Correction Seconds UTCCSUBS= 3515 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 611008601.44496 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 611008601 / ccsds PacKeT SEConds PKTSUBS = 22248 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'VfEGWf99VfEEVf99' / HDU checksum updated 2020-05-12T20:36:23 DATASUM = '2916266102' / data unit checksum updated 2020-05-12T20:36:23 END A5ZA5v!A5e@_@A5"@?١@A5vm@ApA5h@?١@A5 @UOA5@G8A5R*@EA5!@PA5@1pA53;@;*A5@@G8A5D@> A5#O@LaA5U~@IJA5i@KyA5g @- A5d@M A5xR@5A5@4A5@1pA5@@dA573@Oa@A5b@9JA5I'@$A5@4A5ZmH@7kPA5w@= 1 A5k@N A5V@0ܠA5|@*:A5@8[ A5?@6{A5@YJA5@= A5((@/١@A5)@&{A59nY@6{A5@6{A5J@/١@A5W?@C4(A5[n@4A5䝝@JA5 m@@ ܠA5 @"@A5!~@([ A5")@([ A5"@([ A5#oi@EA5#@- A5$) @4A5$XO@0ܠA5%:@> A5%Þ@1pA5&LA@1pA5&e@0ܠA5']@SA5'*@6{A5(n@B@A5(pz@R@A5)@ApA5*@5A5*Y`@4A5+@,aA5+@*:A5,+BF@"@