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 = '00863421000' / Observation ID TARG_ID = '863421 ' / 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 = 559579187.79452 / Start time DATE-OBS= '2018-09-25T14:39:47.8' / Start Date TSTOP = 559579293.34356 / Stop time DATE-END= '2018-09-25T14:41:33.3' / 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 = '2018-09-25T14:41:20' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -21.65086 / UTCF at TSTART CHECKSUM= 'dCdJeCZHdCbHdCZH' / HDU checksum updated 2018-09-25T14:41:20 DATASUM = ' 0' / data unit checksum updated 2018-09-25T14:41:20 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 = '00863421000' / Observation ID TARG_ID = '863421 ' / 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 = '2018-09-25T14:41:20' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 559579187.79452 / Start time DATE-OBS= '2018-09-25T14:39:47.8' / Start Date TSTOP = 559579293.34356 / Stop time DATE-END= '2018-09-25T14:41:33.3' / Stop Date UTCFINIT= -21.65086 / 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 = 863421 / Trigger Number XRA_OBJ = 315.253021240234 / [deg] XRT RA location GRB or Object XDEC_OBJ= -64.4318923950195 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.549039959908 / 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= -21.65086 / [s] UTC Correction TIME UTCCSEC = -22 / UTC Correction Seconds UTCCSUBS= 17457 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 559579293.44486 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 559579293 / ccsds PacKeT SEConds PKTSUBS = 22243 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= '78KRA7IR87IRA7IR' / HDU checksum updated 2018-09-25T14:41:20 DATASUM = '1281237688' / data unit checksum updated 2018-09-25T14:41:20 END A@A@A@]~@g/\A@i@Nq A@o 5@RDXA@d@R@A@R@RdA@@M A@@SA@V@K*A@(3@@ܠA@)Oc@D#A@)?@EA@*`@B@A@*@HA@+r(x@ATA@+˧@C4(A@,n@S4(A@- @LaA@-5@?١@A@.Xd@FhA@.@K*A@/.@@dA@/AJ@M 1 A@0?z@LaA@0ȇ@G8A@1Q*@ApA@1@IJA@2bq7@> A@2f@H[ A@3s@9JA@3Z@ApA@4@;*A@5 @@dA@5C@GkPA@62@R4A@6a@= 1 A@70,@;*A@7@SpA@8ArG@4A@8w@@ܠA@9R@8[ A@9[@5A@:c@FA@:4@2@A@;uEc@/١@A@;@= 1 A@<@PA@=.I@5A@=x@?١@A@> t@RLA@>@@ܠA@?1@J:A@?^5@9JA@@C@- A@@ˣ@9JA@ATG@= 1 A@AK@7kPA@Bez@B@A@B0@?١@A@Cv@@dA@Cw@= A@D@8[ A@E@"@A@E_F@8[ A@F"u@9JA@F@3A@G3H@1pA@G@2@A@HD@5A@H1@2@A@IU@= A@Ix@= 1 A@JgH@= 1 A@Jw@9JA@Kxa@&{A@L@::A@L]@"@A@MJ@ApA@M@1pA@N#@E