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 = '00666931000' / Observation ID TARG_ID = '666931 ' / 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 = 471410144.99444 / Start time DATE-OBS= '2015-12-10T03:15:45.0' / Start Date TSTOP = 471410366.97084 / Stop time DATE-END= '2015-12-10T03:19:27.0' / 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 = '2015-12-10T03:20:32' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -15.53184 / UTCF at TSTART CHECKSUM= 'mJjNmJhNmJhNmJhN' / HDU checksum updated 2015-12-10T03:20:32 DATASUM = ' 0' / data unit checksum updated 2015-12-10T03:20:32 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 = '00666931000' / Observation ID TARG_ID = '666931 ' / 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 = '2015-12-10T03:20:32' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 471410144.99444 / Start time DATE-OBS= '2015-12-10T03:15:45.0' / Start Date TSTOP = 471410366.97084 / Stop time DATE-END= '2015-12-10T03:19:27.0' / Stop Date UTCFINIT= -15.53184 / 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 = 666931 / Trigger Number XRA_OBJ = 65.1886215209961 / [deg] XRT RA location GRB or Object XDEC_OBJ= -71.2037658691406 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 221.976399958134 / TSTOP - TSTART ONTIME = 219.663879394531 / Time on target LIVETIME= 219.663879394531 / Ontime multiplied by DEADC EXPOSURE= 219.663879394531 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -15.53184 / [s] UTC Correction TIME UTCCSEC = -16 / UTC Correction Seconds UTCCSUBS= 23408 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 471410367.04596 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 471410367 / ccsds PacKeT SEConds PKTSUBS = 2298 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= '1eFc3e9a1eCa1e9a' / HDU checksum updated 2015-12-10T03:20:32 DATASUM = '3654207459' / data unit checksum updated 2015-12-10T03:20:32 END A%A%lAA%O@QA%)@J:A% ܇@  A%"@7kPA%/iD@ A%@@ A%Q@@A%c;@{A%to@:A%@3A%,@$A%T@$A%@KyA%H@1pA%'@{A%n@PdA%c@"@A%r@"@A%!?@{A%2/? A%i@1&a@A%@1&a@A&m@6U@A&@1{@A&q_F@5#fA&>@3$A& u @5#fA& @4W1A&xz@7!`A&@5 A&|@3A&E@4W1A&`@5#fA&B@5 A&!@5 A&!y@2ɀA@5 A&& ;@0Z- A&(@5 A&+ @4W1A&-ag@3A&0Bp@0Z- A&2")@1&a@A&5@3A&7@2XA&:¤@1{@A&<^@3$A&?@3A&Ac @3A&D B@2ɀA&F"@3A&I$K@6U@A&KT@4KA&N' @3A&P@2ɀA&S+@2XA&Ud@4KA&X/D@4W1A&Z$J@1`A&]3S@3A&_ @2ɀA&b6@2ɀA&d@3A&g:@4KA&ieA@1{@A&l>D@3$A&n$@1{@A&qB@5 A&su@3A&vE.@3$A&xǦ7@5#fA&{I@5#fA&}e@5 A&MEc@0Z- A&&l@3A&Q%@3A&@3A&T@3$A&֧@3$A&X@3A&gb@5#fA&\Hk@4W1A&($@6U@A&`@3$A&@5 A&cȟ@3A&X@4W1A&g@6@A&i@5 A&kH@6@A&(@3A&o @5 A&O@1{@A&r@1{@A&@2XA&v@3$A&i@6@A&zJ@1`