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 = '00865036000' / Observation ID TARG_ID = '865036 ' / 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 = 560172566.20942 / Start time DATE-OBS= '2018-10-02T11:29:26.2' / Start Date TSTOP = 560172687.34224 / Stop time DATE-END= '2018-10-02T11:31:27.3' / 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 = '2018-10-02T11:31:22' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -21.68764 / UTCF at TSTART CHECKSUM= 'eOjRhLiOeLiOeLiO' / HDU checksum updated 2018-10-02T11:31:22 DATASUM = ' 0' / data unit checksum updated 2018-10-02T11:31:22 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 = '00865036000' / Observation ID TARG_ID = '865036 ' / 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 = '2018-10-02T11:31:22' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 560172566.20942 / Start time DATE-OBS= '2018-10-02T11:29:26.2' / Start Date TSTOP = 560172687.34224 / Stop time DATE-END= '2018-10-02T11:31:27.3' / Stop Date UTCFINIT= -21.68764 / 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 = 865036 / Trigger Number XRA_OBJ = 64.7273330688477 / [deg] XRT RA location GRB or Object XDEC_OBJ= 15.2392673492432 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 121.132820010185 / TSTOP - TSTART ONTIME = 118.878074645996 / Time on target LIVETIME= 118.878074645996 / Ontime multiplied by DEADC EXPOSURE= 118.878074645996 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -21.68764 / [s] UTC Correction TIME UTCCSEC = -22 / UTC Correction Seconds UTCCSUBS= 15618 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 560172687.44486 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 560172687 / ccsds PacKeT SEConds PKTSUBS = 22243 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'ZXK2eUI0ZUI0bUI0' / HDU checksum updated 2018-10-02T11:31:22 DATASUM = '429955868' / data unit checksum updated 2018-10-02T11:31:22 END A FA QeA D@] A C@SA r@IJA /-@EA @6{A@r@C4(A@EAQ@7kPA\>@IJAbm@UA뢜@QTAtD|@4A@KyA@GkPA. @VhA9@CAs@3AH@X[ A0x@FhA\@> AA@FAʢ^@= 1 ASE@IA@9JAdD@F{A.s@@dAu@D#At*@IAY@HA@= 1 A]@= 1 A @3A@7kPA2E@6{A%@/١@ACT@<aA.4@IJATc@5At@1pA f@<aA @RdA!w]y@9JA"@@ܠA"/@?١@A#F_@/١@A#@9JA$"@&{A$/E@$A%3@X,A%t@3A&E+@@dA&ͻZ@2@A'V]@&{A'@  A(g@$A(F@@ܠA)x@CA*~@P(ĠA*/@9JA+@*:A+ud@6{A,$@([ A,@?١@A-5^J@;*A-y@4A.F@GkPA.G@8[ A/W@ A/@?١@A0i0@D#A0F@&{A1zvu@/١@A2U@G8A2@{A3^@5A3@$A4%@ATA4HA@DA56@:A5P@Nq A6H0@@ܠA6Ӯ@  A7Yv@3A7e@{A8j@UA8_@8[ A9|K@7kPA:z@QTA:H@{A;1? A=">@3$A>@5 A@(P@1&a@AAh,@3ABa@2XAC>@1{@AE+@2ɀAFlO@1{@