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 = '00652847000' / Observation ID TARG_ID = '652847 ' / 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 = 461843304.60924 / Start time DATE-OBS= '2015-08-21T09:48:24.6' / Start Date TSTOP = 461843410.24338 / Stop time DATE-END= '2015-08-21T09:50:10.2' / 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 = '2015-08-21T09:50:03' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -15.02354 / UTCF at TSTART CHECKSUM= 'dJiPgGfMdGfMdGfM' / HDU checksum updated 2015-08-21T09:50:03 DATASUM = ' 0' / data unit checksum updated 2015-08-21T09:50:03 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 = '00652847000' / Observation ID TARG_ID = '652847 ' / 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 = '2015-08-21T09:50:03' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 461843304.60924 / Start time DATE-OBS= '2015-08-21T09:48:24.6' / Start Date TSTOP = 461843410.24338 / Stop time DATE-END= '2015-08-21T09:50:10.2' / Stop Date UTCFINIT= -15.02354 / 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 = 652847 / Trigger Number XRA_OBJ = 341.898620605469 / [deg] XRT RA location GRB or Object XDEC_OBJ= -57.8917045593262 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.634140014648 / 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= -15.02354 / [s] UTC Correction TIME UTCCSEC = -16 / UTC Correction Seconds UTCCSUBS= 48823 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 461843410.32494 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 461843410 / ccsds PacKeT SEConds PKTSUBS = 16247 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'M6OdM3ObM3ObM3Ob' / HDU checksum updated 2015-08-21T09:50:03 DATASUM = '2373446770' / data unit checksum updated 2015-08-21T09:50:03 END A+h'A+i eA+iX@cR"A+j(@V{A+ko@YA+lյt@XA+m@Q|A+n@@UA+p @R@A+qO@VhA+r,@X,A+s=Y @R4A+tNk@YA+u_@W/\A+vq,(@\= A+wr@TA+x@UA+yC@[mA+zE@UA+{nj@R4A+|_@Q|A+}n@UA+~]@QpA+ +@UǤA+@N A+/0@YA+@wG@LaA+Q@SpA+c@PܠA+tJb@QTA+@QA+@JA+.@T#A+b@UǤA+ʧ@KyA+@[yA+4Y@M 1 A+z@D#A+@Nq A+!t@Oa@A+2M@K*A+C1@PܠA+Tڐ@ZvA+f @K*A+wgM@N A+@Nq A+ @RDXA+9@G8A+x@UǤA+@J:A+ 5@QA+R@UOA+@Nq A+@PdA+$$_@PdA+5j@QpA+F@S4(A+W{@N A+i=@P(ĠA+z8@UA+ʗ@UA+@O١@A+V@PdA+c@X[ A+@UA+) @W8A+o~@RLA+@VA+;@O١@A+'B@O١@A+8@PdA+IW@K*A+[@PA+l\@Oa@A+}#@SA+2@QTA+,@PdA+r@RLA+¹N@PA+@KyA+F @P(ĠA+i@LI A+@QA+&@Oa@A+*_@J:A+;@J:A+LB@M A+^2@J:A+ow@Q|A+ƀ@PdA+ǒl@VhA+ȣJ@R4A+ɴ*@KyA+׈@M 1 A+@RDXA+dE@UA+T@KyA+ @N A+6@N A+-|p@Ky