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 = '00701454000' / Observation ID TARG_ID = '701454 ' / 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 = 488564109.8095 / Start time DATE-OBS= '2016-06-25T16:15:09.8' / Start Date TSTOP = 488564341.98712 / Stop time DATE-END= '2016-06-25T16:19:02.0' / 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 = '2016-06-25T16:21:29' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -16.46818 / UTCF at TSTART CHECKSUM= 'iFaLjDaIiDaIiDaI' / HDU checksum updated 2016-06-25T16:21:29 DATASUM = ' 0' / data unit checksum updated 2016-06-25T16:21:29 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 = '00701454000' / Observation ID TARG_ID = '701454 ' / 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 = '2016-06-25T16:21:29' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 488564109.8095 / Start time DATE-OBS= '2016-06-25T16:15:09.8' / Start Date TSTOP = 488564341.98712 / Stop time DATE-END= '2016-06-25T16:19:02.0' / Stop Date UTCFINIT= -16.46818 / 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 = 701454 / Trigger Number XRA_OBJ = 299.508544921875 / [deg] XRT RA location GRB or Object XDEC_OBJ= 35.3289337158203 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 232.177619993687 / TSTOP - TSTART ONTIME = 229.742462158203 / Time on target LIVETIME= 229.742462158203 / Ontime multiplied by DEADC EXPOSURE= 229.742462158203 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -16.46818 / [s] UTC Correction TIME UTCCSEC = -17 / UTC Correction Seconds UTCCSUBS= 26591 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 488564342.04562 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 488564342 / ccsds PacKeT SEConds PKTSUBS = 2281 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= '7JGLBH9L9HELAH9L' / HDU checksum updated 2016-06-25T16:21:29 DATASUM = '970791600' / data unit checksum updated 2016-06-25T16:21:29 END A;dA<A՗N@LI A@- A!l@:A g@{A@/١@A+8@:A=9@([ AN~@,aA_õ@"@Aq @9JA噂Pr@@ܠA嚓@ ܠA囤? 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