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 = '00972010000' / Observation ID TARG_ID = '972010 ' / 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 = 611069667.9945 / Start time DATE-OBS= '2020-05-13T13:34:28.0' / Start Date TSTOP = 611069773.60494 / Stop time DATE-END= '2020-05-13T13:36:13.6' / 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 = '2020-05-13T13:35:59' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -24.93368 / UTCF at TSTART CHECKSUM= 'lDhTmDZRlDfRlDZR' / HDU checksum updated 2020-05-13T13:35:59 DATASUM = ' 0' / data unit checksum updated 2020-05-13T13:35:59 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 = '00972010000' / Observation ID TARG_ID = '972010 ' / 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 = '2020-05-13T13:35:59' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 611069667.9945 / Start time DATE-OBS= '2020-05-13T13:34:28.0' / Start Date TSTOP = 611069773.60494 / Stop time DATE-END= '2020-05-13T13:36:13.6' / Stop Date UTCFINIT= -24.93368 / 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 = 972010 / Trigger Number XRA_OBJ = 245.048706054688 / [deg] XRT RA location GRB or Object XDEC_OBJ= -15.5160150527954 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.610440015793 / 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= -24.93368 / [s] UTC Correction TIME UTCCSEC = -25 / UTC Correction Seconds UTCCSUBS= 3316 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 611069773.6457 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 611069773 / ccsds PacKeT SEConds PKTSUBS = 32285 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'jD9BjD9BjD9BjD9B' / HDU checksum updated 2020-05-13T13:35:59 DATASUM = '1085838641' / data unit checksum updated 2020-05-13T13:35:59 END A6qKA6r6"A6rI@rFA6s@d}A6s.@i,A6t2@gJA6t=@dA6u*xl@hA6u@emA6v;@cpA6va@ftA6wM@bDXA6wէ @arA6x^J8@dA6xg@fzA6yo@cA6y3@dA6zM@o@A6{ y}@pA6{\@n A6|@cA6|a@hyA6},@c.A6}r@cpA6~=J@b@A6~@dA6NX@_% A62@cA6_@jXA6y>@hA6qm@dA6@dA6a|@] A6 @f?A6@dA6K @bbRA6@`A6-@jA63@bFA6>w@bLA6x@b4A6P.@cA6ؿ]@_١@A6ab@c A6@cA6rD@a|A6Ks@hyA6@ajA6 @h,A63@g>A6@g8A6z@eA6/@eA6@ftA6@bN@bDXA6}@c4(A6Q@ajA6K4@bdA6bc@bLA6둒@fhA6t4@jA6֡@d}A6y@dA6@eOA6/@bDXA6b@`ܠA6>@eA60m@hA6K@n A6A$@bLA6ʑS@dA6S4@d#A6ײ@gbA6dy@dA6@eǤA6u@b@A6c @d_A6@]F% A6@aTA6K^@p7A6 @avA6@`A624D@eA6s@\= A6Cz@bLA6@m A6T@dA6b@f{A6f@eA6?@eA6wK@eA6@ajA6}@dA64@bFA64@jA6"zc@f!A6@`A63@fnA6cI@emA6E@aj