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 = '00808625000' / Observation ID TARG_ID = '808625 ' / 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 = 539497729.41396 / Start time DATE-OBS= '2018-02-05T04:28:49.4' / Start Date TSTOP = 539497864.98666 / Stop time DATE-END= '2018-02-05T04:31:05.0' / 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 = '2018-02-05T04:30:54' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -20.42804 / UTCF at TSTART CHECKSUM= 'bHaRbGZObGaObGYO' / HDU checksum updated 2018-02-05T04:30:54 DATASUM = ' 0' / data unit checksum updated 2018-02-05T04:30:54 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 = '00808625000' / Observation ID TARG_ID = '808625 ' / 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 = '2018-02-05T04:30:54' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 539497729.41396 / Start time DATE-OBS= '2018-02-05T04:28:49.4' / Start Date TSTOP = 539497864.98666 / Stop time DATE-END= '2018-02-05T04:31:05.0' / Stop Date UTCFINIT= -20.42804 / 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 = 808625 / Trigger Number XRA_OBJ = 126.812156677246 / [deg] XRT RA location GRB or Object XDEC_OBJ= 11.6202220916748 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 135.572700023651 / TSTOP - TSTART ONTIME = 133.276031494141 / Time on target LIVETIME= 133.276031494141 / Ontime multiplied by DEADC EXPOSURE= 133.276031494141 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -20.42804 / [s] UTC Correction TIME UTCCSEC = -21 / UTC Correction Seconds UTCCSUBS= 28598 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 539497865.04482 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 539497865 / ccsds PacKeT SEConds PKTSUBS = 2241 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= '1AaA14T91AYA13Y9' / HDU checksum updated 2018-02-05T04:30:54 DATASUM = '2137230047' / data unit checksum updated 2018-02-05T04:30:54 END A A A 5J@Z:A @rSUA FX@D#A 3@1pA Wֶ@> A y@= A i@G8A D@7kPA zcs@@ܠA @::A @FA K@VtA @@dA %@@dA 5?@C4(A 6o@= 1 A {@M A H&@Nq A U@2@A Yc@K*A  @C4(A j;@B@A Mj@D#A {@9JA !@$A 6P@4A @0ܠA |@@ܠA '@2@A e@VA 8e@?١@A @([ A IK@= A N{@;*A Z@@dA @G8A l8 @8[ A 8@F{A }~g@JA  G@4A v@1pA f@K*A @*:A (@"@A P3@?١@A 9b@C4(A •@EA K9@5A H@$A \~@6{A !@?١@A m.@ApA h^@- A  @KyA @ ܠA QD@QpA s@R4A @:A *:*@H[ A Y@{A ;@DA #@PA L?@@ܠA in@*:A ^ @@A @ ܠA oR@{A +@- A @C4(A ;:@:A j@V?A @8[ A $@&{A +@@dA k'@([ A = @4A Ű@PܠA NT @{A @::A _? A ?@4W1A 0/@2ɀA q @5 A @3A @2XA 3@2ɀA t@4W1A [@3$A 8@1`A 7@3$A xI@4W1A &@5 A }@1{@A ;m@1{@A |\@1&a@A L@3$A