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 = '00982201000' / Observation ID TARG_ID = '982201 ' / 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 = 616333555.41342 / Start time DATE-OBS= '2020-07-13T11:45:55.4' / Start Date TSTOP = 616333661.0289 / Stop time DATE-END= '2020-07-13T11:47:41.0' / 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 = '2020-07-13T11:54:57' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -25.27644 / UTCF at TSTART CHECKSUM= 'oFfSpFcPoFcPoFcP' / HDU checksum updated 2020-07-13T11:54:57 DATASUM = ' 0' / data unit checksum updated 2020-07-13T11:54:57 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 = '00982201000' / Observation ID TARG_ID = '982201 ' / 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 = '2020-07-13T11:54:57' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 616333555.41342 / Start time DATE-OBS= '2020-07-13T11:45:55.4' / Start Date TSTOP = 616333661.0289 / Stop time DATE-END= '2020-07-13T11:47:41.0' / Stop Date UTCFINIT= -25.27644 / 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 = 982201 / Trigger Number XRA_OBJ = 76.9615859985352 / [deg] XRT RA location GRB or Object XDEC_OBJ= -32.8408546447754 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.615480065346 / 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= -25.27644 / [s] UTC Correction TIME UTCCSEC = -26 / UTC Correction Seconds UTCCSUBS= 36178 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 616333661.14178 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 616333661 / ccsds PacKeT SEConds PKTSUBS = 7089 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'RkaTTjRRRjXRRjXR' / HDU checksum updated 2020-07-13T11:54:57 DATASUM = '2822322064' / data unit checksum updated 2020-07-13T11:54:57 END A^@yA^@yA^@z5^@^5 A^@z#@QA^@{Fƽ@Oa@A^@{i@D#A^@|X t@FhA^@|௣@LI A^@}iR@B@A^@}@M 1 A^@~z1@O١@A^@;@P(ĠA^@@K*A^@@JA^@%F@CA^@%u@> A^@k@P(ĠA^@7,@J:A^@[@EA^@HT@8[ A^@@5A^@Y@7kPA^@>@= 1 A^@j@ATA^@@8[ A^@|&@IJA^@.@;*A^@m]@<aA^@@@ܠA^@@BDXA^@'VC@0ܠA^@r@3A^@8@,aA^@?@EA^@IX@J:A^@҅@&{A^@[(@$A^@@2@A^@lo@RLA^@E@<aA^@}@- A^@W@$A^@+@/١@A^@Z@B@A^@A@2@A^@(@M 1 A^@@@5A^@:*o@TA^@͟@ A^@Kp@::A^@@ApA^@\@vlA^@Y@;*A^@m@ A^@@DA^@CB@@A^@q@= 1 A^@@ A^@,(@IJA^@W@EA^@*r@4A^@@1pA^@;@`FA^@[l@C4(A^@L@S4(A^@ա@RDXA^@^D@9JA^@)@@A^@o@2@A^@-@?١@A^@@8[ A^@ t?@IA^@n@::A^@@{A^@]%@C4(A^@,T@K*A^@@4A^@=F@  A^@@4A^@N@CA^@/@$A^@_@6{A^@u@ZvA^@q&@3A^@V@1pA^@_@?١@A^@  @:A^@<@C4(A^@Hk@?١@A^@@{A^@-@?١@A^@1Q@,aA^@>Ԁ@  A^@w@<aA^@P@$A^@ؾ@6{A^@aa=@:A^@@H[ A^@r@9JA^@J#@