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 = '00668641000' / Observation ID TARG_ID = '668641 ' / 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 = 473035705.41246 / Start time DATE-OBS= '2015-12-28T22:48:25.4' / Start Date TSTOP = 473035811.00862 / Stop time DATE-END= '2015-12-28T22:50:11.0' / 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 = '2015-12-28T22:50:02' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -15.61916 / UTCF at TSTART CHECKSUM= 'fFdXfEdVfEdVfEdV' / HDU checksum updated 2015-12-28T22:50:02 DATASUM = ' 0' / data unit checksum updated 2015-12-28T22:50:02 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 = '00668641000' / Observation ID TARG_ID = '668641 ' / 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 = '2015-12-28T22:50:02' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 473035705.41246 / Start time DATE-OBS= '2015-12-28T22:48:25.4' / Start Date TSTOP = 473035811.00862 / Stop time DATE-END= '2015-12-28T22:50:11.0' / Stop Date UTCFINIT= -15.61916 / 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 = 668641 / Trigger Number XRA_OBJ = 344.445678710938 / [deg] XRT RA location GRB or Object XDEC_OBJ= 8.07756328582764 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.596159994602 / 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= -15.61916 / [s] UTC Correction TIME UTCCSEC = -16 / UTC Correction Seconds UTCCSUBS= 19042 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 473035811.04916 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 473035811 / ccsds PacKeT SEConds PKTSUBS = 2458 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= '48Am481m488m488m' / HDU checksum updated 2015-12-28T22:50:02 DATASUM = '1893266113' / data unit checksum updated 2015-12-28T22:50:02 END A1iA1E9A1e.@m(+ A1w @h2A1Q@jУA1󽙘J@iA1ީ@c4(A1%@qA1kf@] A1ޱ@f]A1@dA1=2@_a@A1@_% A1#@ZvA15M@`FA1FV@`FA1W @k A1hi@W/\A1z)@W8A1̋p&@_% A1͜5@bbRA1έ@bLA1ϿA@VhA1ЈQ@W8A1ί@`FA1@X[ A1[l@YA1@VA1&)@VhA18-8@WkPA1Is@V?A1Z@[*A1lT@`A1}F@V?A1܎@\= A1ݟo@RdA1ޱ@UA1`-@RLA1Ӧ@RdA1@_@A11@RLA1xW@] A1@` ʠA1*@N A1;Ks@PdA1L@l8[A1]0@R@A1o@S4(A1d@X[ A1쑩@J:A1Z@Oa@A16@UǤA1}@UA1v@SA1 @V?A1P3@`(ĠA1 @X,A1@RDXA1-$@R@A1>i@QpA1O @UA1`j@RDXA1r<@a6A1'@PdA1Ɇ@PdA1@LI A1VC@Q|A1Ȝ@O١@A1@M 1 A1(@M A1nn@M A1 @M 1 A1+@] 1 A10A@T#A1A@LI A1RF@JA1 d@RLA1 u[@UA1 b@JA1 q@LaA1 ,@M A1s.@W/\A1˹@LaA1@M A1FJ@GkPA1@N A1@D#A1"e@9JA13_@D#A1D@M A1U1@= A1g1@= 1 A1xw@;*A1M@EA1@QpA1K @IJA1h@F{A1@@ܠA1 &@@ܠA1!c5@IJ