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 = '00946476000' / Observation ID TARG_ID = '946476 ' / 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 = 599184230.2096 / Start time DATE-OBS= '2019-12-28T00:03:50.2' / Start Date TSTOP = 599184335.8452 / Stop time DATE-END= '2019-12-28T00:05:35.8' / 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 = '2019-12-28T00:05:18' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -24.16244 / UTCF at TSTART CHECKSUM= '1FhM39eJ1EeJ19eJ' / HDU checksum updated 2019-12-28T00:05:18 DATASUM = ' 0' / data unit checksum updated 2019-12-28T00:05:18 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 = '00946476000' / Observation ID TARG_ID = '946476 ' / 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 = '2019-12-28T00:05:18' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 599184230.2096 / Start time DATE-OBS= '2019-12-28T00:03:50.2' / Start Date TSTOP = 599184335.8452 / Stop time DATE-END= '2019-12-28T00:05:35.8' / Stop Date UTCFINIT= -24.16244 / 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 = 946476 / Trigger Number XRA_OBJ = 5.31830310821533 / [deg] XRT RA location GRB or Object XDEC_OBJ= -8.681471824646 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.635599970818 / 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= -24.16244 / [s] UTC Correction TIME UTCCSEC = -25 / UTC Correction Seconds UTCCSUBS= 41878 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 599184335.92482 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 599184335 / ccsds PacKeT SEConds PKTSUBS = 46241 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'nYoToXnRnXnRnXnR' / HDU checksum updated 2019-12-28T00:05:18 DATASUM = '3371119895' / data unit checksum updated 2019-12-28T00:05:18 END Ai,AiQKAix@{*Ai&O@vAi5~@wJAi7خ@umAi{@s AiI @vzAi@u^AiZek@rLAi@saAik@sR"AiN@rSUAi|(@s Ai@q'Ai9.@qAi۶@qmAi~@p띠Ai("@qrAiC@qyAi9i@nq Ai J@jXAiJy@m 1 AiR@qTAi[0@n5 Ai_@jAim<6@jAie@laAi~@i,Ai%@jAiK@hAil"@iAiáR@hAi)@h,AiIJU@dAAi:@hAiÜ@e1AiL?>@gJAim@ihAi]@m(+ Ai(@dAin@cAio*@avAiɀ@bFAi1@bDXAiʑX@a|Ai@eOAiˢ@f?Ai+B@`FAi̳@ZvAi@`AiƼA@V{AiO_p@V?Ai@aAi`@WDAiI@\aAiq@Q|Ai@XAiك33@PdAi ջ@TAiڔy@UǤAi@QAiۥ@PdAi.c @P(ĠAiܷO@M Ai?~@VhAiL@RDXAiP@Nq Aiٓ @G8Aib6;@IAij@RdAis|@N Ai q@RdAi@Nq Ai f'@?١@Ai W@R@Ai@PAiP]@G8Ai/@M Ai世@ApAiA9@<aAir@JAiRI@QAi#y@O١@Aicƨ@@ܠ