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 = '00922968000' / Observation ID TARG_ID = '922968 ' / 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 = 588801530.59312 / Start time DATE-OBS= '2019-08-29T19:58:50.6' / Start Date TSTOP = 588801636.1422 / Stop time DATE-END= '2019-08-29T20:00:36.1' / 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 = '2019-08-29T20:00:25' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -23.49428 / UTCF at TSTART CHECKSUM= 'jEiHmCZGjCfGjCZG' / HDU checksum updated 2019-08-29T20:00:25 DATASUM = ' 0' / data unit checksum updated 2019-08-29T20:00:25 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 = '00922968000' / Observation ID TARG_ID = '922968 ' / 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 = '2019-08-29T20:00:25' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 588801530.59312 / Start time DATE-OBS= '2019-08-29T19:58:50.6' / Start Date TSTOP = 588801636.1422 / Stop time DATE-END= '2019-08-29T20:00:36.1' / Stop Date UTCFINIT= -23.49428 / 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 = 922968 / Trigger Number XRA_OBJ = 44.5351676940918 / [deg] XRT RA location GRB or Object XDEC_OBJ= -8.9805269241333 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.549080014229 / 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= -23.49428 / [s] UTC Correction TIME UTCCSEC = -24 / UTC Correction Seconds UTCCSUBS= 25286 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 588801636.24488 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 588801636 / ccsds PacKeT SEConds PKTSUBS = 12244 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'LVZeNTXZLTXdLTXZ' / HDU checksum updated 2019-08-29T20:00:25 DATASUM = '4197047938' / data unit checksum updated 2019-08-29T20:00:25 END A2K[A2zA2@^5 A2L@3A2W@1pA2]D@8[ A2@C4(A3o?S@,aA3@= A3@9JA3 (9@ATA3@G8A3m@- A3@C4(A3+N@;*A3V@M 1 A3<@,aA3Ŝ@CA3N?@::A3C@ ܠA3_s@<aA3(@9JA3p)@*:A3nY@ ܠA3 @?١@A3 @F{A3 V@"@A3 @2@A3 N@3A3 -?}@9JA3 @6{A3 >@8[ A3 (c@4A3O@$A3n@QpA3aI@9JA3x@/١@A3rVX@"@A3@@A3@N A3 ?@;*A3m@([ A3@([ A3($@@ܠA3.S@,aA3n@,aA3@ @;*A3ȳ@::A3QV@BDXA3@$A3bx@5A3?@BDXA3s.@ A3^@- A3(@= 1 A3 @5A3nD@0ܠA3@4A3@EA30V@([ A3@@A3A@N A3?h@([ A3R@H[ A3ۅ@5A3d(N@6{A3}@([ A3 un@8[ A3 @ ܠA3!@- A3"V@CA3"r@ApA3# @?١@A3#?)@/١@A3$1X@{A3$@<aA3%C(@?١@A3%ʗ@ ܠA3&Tm@RdA3&@= 1 A3'e$@"@A3'WT@:A3(v3@2@A3(c@W/\A3)?@0ܠA3*@ A3*@"@A3+"'@ A3+@@dA3,3n/@2@A3,@&{A3-D>@8[ A3-Vm@5A3.U@ ܠA3.ޜ@- A3/g?S@2@A3/@@A30x @4A31(9@ A31@