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 = '00868850000' / Observation ID TARG_ID = '868850 ' / 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 = 562218027.79472 / Start time DATE-OBS= '2018-10-26T03:40:27.8' / Start Date TSTOP = 562218133.34396 / Stop time DATE-END= '2018-10-26T03:42:13.3' / 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 = '2018-10-26T03:42:32' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -21.81466 / UTCF at TSTART CHECKSUM= 'dDfTeBeQdBeQdBeQ' / HDU checksum updated 2018-10-26T03:42:32 DATASUM = ' 0' / data unit checksum updated 2018-10-26T03:42:32 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 = '00868850000' / Observation ID TARG_ID = '868850 ' / 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 = '2018-10-26T03:42:32' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 562218027.79472 / Start time DATE-OBS= '2018-10-26T03:40:27.8' / Start Date TSTOP = 562218133.34396 / Stop time DATE-END= '2018-10-26T03:42:13.3' / Stop Date UTCFINIT= -21.81466 / 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 = 868850 / Trigger Number XRA_OBJ = 255.801864624023 / [deg] XRT RA location GRB or Object XDEC_OBJ= -38.2226753234863 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.549239993095 / 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= -21.81466 / [s] UTC Correction TIME UTCCSEC = -22 / UTC Correction Seconds UTCCSUBS= 9267 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 562218133.44482 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 562218133 / ccsds PacKeT SEConds PKTSUBS = 22241 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= '93LAA0LA90LAA0LA' / HDU checksum updated 2018-10-26T03:42:32 DATASUM = '1653899959' / data unit checksum updated 2018-10-26T03:42:32 END AbcAbAb]0@^q Ab{_@Q|Abo@CAb@IAbc@LI Ab @DAb@P(ĠAbM+@GkPAbZ@IAb+@DAb6@UǤAb<@@> Ab|p@F{AbN@CAb'@ApAb_eV@> Ab@@ܠAbp@<aAbN<@FAb k@UǤAb! @9JAb!7@7kPAb"@@dAb"~(@ApAb#-!W@BDXAb#7@M Ab$>ff@@ܠAb$ @BDXAb%O@> Ab%O@> Ab&`#@EAb&S@::Ab'r8@= 1 Ab' @/١@Ab(9@G8Ab) "h@IJAb)ŗ@;*Ab*h@,aAb* N@BDXAb+.@6{Ab+Q@O١@Ab,?4@EAb,ȗc@IAb-Q:@YJAb-@LaAb.b@4Ab.#y@SAb/sƨ@ApAb/i@CAb0 _@LI Ab1 @@dAb1R@= Ab2@UAb2t@M Ab30;@V{Ab3@@dAb4A@D#Ab4%1@::Ab5R`@HAb5k@7kPAb6d@;*Ab6찟@F{Ab7uS@DAb7@V{Ab8,@D#Ab9=\@1pAb9@= Ab: @::Ab:&B@9JAb;1q@EAb;l@IAbe=@EAb>>l@ApAb?v@C4(Ab?@N Ab@'@KyAbA)@= AbAm@Oa@AbB"@M AbB@KyAbC3W?@R@AbC@b@AbDD@@dAbD@%@M AbEU@D#AbEޅ@PdAbFg) @P(ĠAbF:@VAbGxoi@GkPAbH@YJAbH@@dAbIXO@F{AbI@ApAbJ#@H