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 = '00895503000' / Observation ID TARG_ID = '895503 ' / 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 = 575421465.60922 / Start time DATE-OBS= '2019-03-27T23:17:45.6' / Start Date TSTOP = 575421712.13692 / Stop time DATE-END= '2019-03-27T23:21:52.1' / 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 = '2019-03-27T23:23:39' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -22.64212 / UTCF at TSTART CHECKSUM= 'dFdLgCdKdCdKdCdK' / HDU checksum updated 2019-03-27T23:23:39 DATASUM = ' 0' / data unit checksum updated 2019-03-27T23:23:39 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 = '00895503000' / Observation ID TARG_ID = '895503 ' / 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 = '2019-03-27T23:23:39' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 575421465.60922 / Start time DATE-OBS= '2019-03-27T23:17:45.6' / Start Date TSTOP = 575421712.13692 / Stop time DATE-END= '2019-03-27T23:21:52.1' / Stop Date UTCFINIT= -22.64212 / 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 = 895503 / Trigger Number XRA_OBJ = 297.846618652344 / [deg] XRT RA location GRB or Object XDEC_OBJ= 39.0693244934082 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 246.527699947357 / TSTOP - TSTART ONTIME = 244.140426635742 / Time on target LIVETIME= 244.140426635742 / Ontime multiplied by DEADC EXPOSURE= 244.140426635742 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -22.64212 / [s] UTC Correction TIME UTCCSEC = -23 / UTC Correction Seconds UTCCSUBS= 17894 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 575421712.24484 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 575421712 / ccsds PacKeT SEConds PKTSUBS = 12242 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'NGgFNFe9NFeCNFe9' / HDU checksum updated 2019-03-27T23:23:39 DATASUM = '994929224' / data unit checksum updated 2019-03-27T23:23:39 END A& A&  A& K@R4A& ԡ@7kPA&]DA&[@KA&;L@"XA&|;O@!{@A&+,@&U@A& @#A&? @#A&@!{@A&@% A&@'!`A&Bɰ@ G A&@% A&ĩi@'A& F@$KA&!F"@$KA&"xW@$KA&#h4@% A&% X@)A&&JG@#$A&'7@#$A&(&@#$A&* @'!`A&+N_@% A&,<@(PA&-q@"XA&/M@$KA&0Q*@#A&1@#A&2ӥ<@"XA&4@'!`A&5U@"XA&6uy@'!`A&7eV@% A&9T@#A&:YDg@#A&;4D@#$A&<$ @(PA&>U@ G A&?]2@#A&@@(PA&A@!{@A&C@&U@A&D`¤@$KA&E@*RA&F^@'A&H#:@% A&Ido@% A&JqL@!{@A&Ka(@(PA&M'Q@% A&Nh@@&U@A&O0@'!`A&P @% A&R+w@&U@A&SlT@'!`A&T@$KA&Ue@'A&W.B@(PA&Xo@&U@A&YS@#A&Z@&U@A&\2@$KA&]s~@$KA&^nn@$KA&_]@% A&a6M@#$A&bw=\@$KA&c-8@% A&d@&U@A&f: J@% A&gz@#A&h@&U@A&i܇@% A&k=˼@#$A&l~@3A&mu@% A&oR@#A&pA/@'!`A&qzc@&U@A&rj@@$KA&tZ@'!`A&uEJ@&U@A&v9@&U@A&w)@% A&y@#$A&zI l@$KA&{H@$KA&|}@ G A&~ Z@+!@A&L6@% A&@)A&Ψ@&U@A&@#A&P@$KA&w@$KA&gb@'!`