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 = '01093592000' / Observation ID TARG_ID = '1093592 ' / 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 = 664129317.20894 / Start time DATE-OBS= '2022-01-17T16:21:57.2' / Start Date TSTOP = 664129435.5011 / Stop time DATE-END= '2022-01-17T16:23:55.5' / 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 = '2022-01-17T16:23:40' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -28.45392 / UTCF at TSTART CHECKSUM= 'jIdWl9cUjGcUj9cU' / HDU checksum updated 2022-01-17T16:23:40 DATASUM = ' 0' / data unit checksum updated 2022-01-17T16:23:40 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 = '01093592000' / Observation ID TARG_ID = '1093592 ' / 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 = '2022-01-17T16:23:40' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 664129317.20894 / Start time DATE-OBS= '2022-01-17T16:21:57.2' / Start Date TSTOP = 664129435.5011 / Stop time DATE-END= '2022-01-17T16:23:55.5' / Stop Date UTCFINIT= -28.45392 / 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 = 1093592 / Trigger Number XRA_OBJ = 91.5619659423828 / [deg] XRT RA location GRB or Object XDEC_OBJ= -28.4446964263916 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 118.29215991497 / TSTOP - TSTART ONTIME = 115.998481750488 / Time on target LIVETIME= 115.998481750488 / Ontime multiplied by DEADC EXPOSURE= 115.998481750488 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -28.45392 / [s] UTC Correction TIME UTCCSEC = -29 / UTC Correction Seconds UTCCSUBS= 27304 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 664129435.64514 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 664129435 / ccsds PacKeT SEConds PKTSUBS = 32257 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'PFSAQEQ1PEQ8PEQ8' / HDU checksum updated 2022-01-17T16:23:40 DATASUM = '490778720' / data unit checksum updated 2022-01-17T16:23:40 END A璚AѕA4@dA瓣bc@T_A,@YJA甴@f?A=KI@V{Ax@RLAN@SpA4@W/\A_@W/\A{5@UOAqd@UA@PdA療d@GkPA J@K*A皓z@PdANQ@X[ A盤@EA-@QA眶77@Q|A>f@IJA|@QpAP @V{AL@Oa@Aaf{@YA @Z:Ar@YAP @SpA硃8@M A h@T_A碕8@M A@PܠA磦@H[ A/#%@R@A礷Ŭ@QA@h@RLA @S4(AQ:@KyAQ@EAb@@dA @CAt;@H[ A@@ܠA穅@7kPA$@FhA窖 @FAj@9JA竨 @H[ A0@EA笹T@HAAQ@C4(Aʚ@EAS=@C4(A@HAdf@= 1 A&@?١@Au@CAl@::A籇#@5AS@?١@A粘V@BDXA @> A糩9@> A2?h@ A紺@2@ACn@@dA(@IJAT%@<aAoT@([ Af@&{A @7kPAwX:@,aAj@ A繈A@ ܠAA@O١@A纙@= 1 A"'@/١@A绫+V@= A3@4A缼q @$AE<@@ܠAͷk@8[ AVY@PܠA@{Ag@- AD(@CAx@D#A@/١@A-@2@A>@9JA›r@,aA$@{Aì? 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