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 = '00892607000' / Observation ID TARG_ID = '892607 ' / 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 = 574007121.79372 / Start time DATE-OBS= '2019-03-11T14:25:21.8' / Start Date TSTOP = 574007263.08972 / Stop time DATE-END= '2019-03-11T14:27:43.1' / 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 = '2019-03-11T14:27:46' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -22.55272 / UTCF at TSTART CHECKSUM= 'hCjIhCiGhCiGhCiG' / HDU checksum updated 2019-03-11T14:27:46 DATASUM = ' 0' / data unit checksum updated 2019-03-11T14:27:46 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 = '00892607000' / Observation ID TARG_ID = '892607 ' / 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 = '2019-03-11T14:27:46' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 574007121.79372 / Start time DATE-OBS= '2019-03-11T14:25:21.8' / Start Date TSTOP = 574007263.08972 / Stop time DATE-END= '2019-03-11T14:27:43.1' / Stop Date UTCFINIT= -22.55272 / 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 = 892607 / Trigger Number XRA_OBJ = 212.089874267578 / [deg] XRT RA location GRB or Object XDEC_OBJ= 53.5170249938965 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 141.296000003815 / TSTOP - TSTART ONTIME = 139.035217285156 / Time on target LIVETIME= 139.035217285156 / Ontime multiplied by DEADC EXPOSURE= 139.035217285156 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -22.55272 / [s] UTC Correction TIME UTCCSEC = -23 / UTC Correction Seconds UTCCSUBS= 22364 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 574007263.1317 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 574007263 / ccsds PacKeT SEConds PKTSUBS = 6585 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'UjATVg4TUg9TUg9T' / HDU checksum updated 2019-03-11T14:27:46 DATASUM = '3086423915' / data unit checksum updated 2019-03-11T14:27:46 END AS嘞ASpeASa2@cR"AS@- ASry@M 1 ASC@$ASr@G8AS a@- AS)@ ASX@CASK@SpAS.@6{AS@8[ AS@5@= ASם@7kPASQz@ ܠAS@5ASb+@EASdZ@$ASt@S4(AS@&{ASM@@6{AS o@4AS@ ܠAS6@EASU@&{AS0|@::AS@1pASA@= 1 ASek@- ASS@:AS۫@CASdN@$AS(@:ASuW@7kPAS8@$AS@*:AS~=@{AS!l@5AS Ĝ@ ܠASg@ ܠAS2 @8[ AS)@::ASCP@5AS@1pAST@([ AS:?@([ ASen@@AS@  ASw#@  AST@ ASÈi@$AS @@ܠASę@ ܠAS"S@3ASŪ@@7kPAS3p@:ASƼ;@ApASD&@ AS͂V@"@ASV%@2@ASȴ@{ASgk@0ܠAS@:ASx@*:AST@&{ASˉ@W8AS(@@AS̛>W@/١@AS#@ ASͬ@5AS5'=@/١@ASνm@@ASFm@{AS@5ASW@= ASW*@<aAShY? AS@?& AS9@>OASz@? AS׻~@=ASnn@>OAS=^J@@?AS.@>OASAd@=飠ASA@@G ASv@@T@ASR@: ASD/@9AS @=oASƽ@>OASm@=ASHI@=ASꉍ&@; AS}@=oAS l@;@ASL\@@'