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 = '00811167000' / Observation ID TARG_ID = '811167 ' / 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 = 540953511.60992 / Start time DATE-OBS= '2018-02-22T00:51:51.6' / Start Date TSTOP = 540953617.19492 / Stop time DATE-END= '2018-02-22T00:53:37.2' / 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 = '2018-02-22T00:53:23' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -20.51564 / UTCF at TSTART CHECKSUM= 'gJiQgIgPgIgPgIgP' / HDU checksum updated 2018-02-22T00:53:23 DATASUM = ' 0' / data unit checksum updated 2018-02-22T00:53:23 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 = '00811167000' / Observation ID TARG_ID = '811167 ' / 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 = '2018-02-22T00:53:23' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 540953511.60992 / Start time DATE-OBS= '2018-02-22T00:51:51.6' / Start Date TSTOP = 540953617.19492 / Stop time DATE-END= '2018-02-22T00:53:37.2' / Stop Date UTCFINIT= -20.51564 / 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 = 811167 / Trigger Number XRA_OBJ = 273.398376464844 / [deg] XRT RA location GRB or Object XDEC_OBJ= -9.51899909973145 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.584999918938 / 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= -20.51564 / [s] UTC Correction TIME UTCCSEC = -21 / UTC Correction Seconds UTCCSUBS= 24218 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 540953617.2451 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 540953617 / ccsds PacKeT SEConds PKTSUBS = 12255 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'ZJiZbHZZZHfZbHZZ' / HDU checksum updated 2018-02-22T00:53:23 DATASUM = '590946613' / data unit checksum updated 2018-02-22T00:53:23 END A%A%A%J@J:A%g@6{A%\ @&{A%@*:A%mQ/@2@A%@PdA%~@@ܠA%:@::A%؏ܜ@/١@A%@3A%١"@3A%)*@@ܠA%ڲiY@B@A%; @CA%ï@7kPA%LQ@FA%@4A%]@M 1 A%;%@EA%nU@2@A%@T_A%߀$@SpA%;@= 1 A%i@::A% @D#A%ᢰ!@DA%+SP@,aA%@ATA%<@3A%<6@K*A%Me@QpA%ւ@PdA%_%@M A%K@KyA%pk{@> A%@ A%灱1@([ A% Ta@ATA%@7kPA%@H[ A%=@2@A%,@S4(A%굃@;*A%>&@,aA%\@Oa@A%Ol@0ܠA%@ATA%`@&{A%V@BDXA%qH@2@A%x@CA%>@ATA% @FA%𔄶@FA%'@N A%@@dA%.nD@6{A%s@IJA%?@C4(A%W*@- A%PY@J:A%ٝ@0ܠA%b@@ ܠA%?@6{A%sn@\I A%(@IJA%%@ATA% oT@H[ A%@;*A%@LaA%X@0ܠA%/j@K*A%@DA%AA @?١@A%P@,aA%R@,aA%*@ATA%c@@ܠA%q @= 1 A%u<@;*A%@F{A%YK@PܠA&z@R4A&@= A& B@R4A&@B@A&17@Nq A&+@N A&B@,aA&r@> A&TM@3A&ܷ@6{A&e[@FhA&3@VA&v@([ A&C@[mA&@C4(A&H@N