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 = '00895479000' / Observation ID TARG_ID = '895479 ' / 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 = 575415083.80782 / Start time DATE-OBS= '2019-03-27T21:31:23.8' / Start Date TSTOP = 575415189.41202 / Stop time DATE-END= '2019-03-27T21:33:09.4' / 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 = '2019-03-27T21:33:04' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -22.64172 / UTCF at TSTART CHECKSUM= 'eFdMeCcJeCcJeCcJ' / HDU checksum updated 2019-03-27T21:33:04 DATASUM = ' 0' / data unit checksum updated 2019-03-27T21:33:04 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 = '00895479000' / Observation ID TARG_ID = '895479 ' / 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 = '2019-03-27T21:33:04' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 575415083.80782 / Start time DATE-OBS= '2019-03-27T21:31:23.8' / Start Date TSTOP = 575415189.41202 / Stop time DATE-END= '2019-03-27T21:33:09.4' / Stop Date UTCFINIT= -22.64172 / 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 = 895479 / Trigger Number XRA_OBJ = 314.680450439453 / [deg] XRT RA location GRB or Object XDEC_OBJ= 41.7558708190918 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.604200005531 / 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= -22.64172 / [s] UTC Correction TIME UTCCSEC = -23 / UTC Correction Seconds UTCCSUBS= 17914 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 575415189.4449 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 575415189 / ccsds PacKeT SEConds PKTSUBS = 22245 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'hEjBj9j9hCjAh9j7' / HDU checksum updated 2019-03-27T21:33:04 DATASUM = '1308459037' / data unit checksum updated 2019-03-27T21:33:04 END A&fA&=A&fO@Q|A&5~@"@A&wخ@2@A&{5@([ A&@/١@A&@"@A&d@- A&#J@$A&z@0ܠA&4M@"@A&0@&{A&E`@([ A&6@  A&V@$A&{@ATA&h@0ܠA&@FhA&ye,@3A&[@SA&@,aA&N@<aA&A@- A&$@*:A&6@([ A&5'@ ܠA&|@G8A&G@$A& @8[ A&Xf<@ApA& l@D#A&i@8[ A&N{@*:A&z@Nq A&@$A&8 @BDXA&ڐ@0ܠA&}@= 1 A&& @ ܠA&@6{A&7gM@CA& @2@A&H\@LaA&O@1pA&Y@- A&@7kPA&k9@D#A&ۡ@::A&|~@6{A&!@G8A&ć@7kPA&g@Oa@A& =@= 1 A&'m@EA&P@$A&8@> A&@@ܠA&J9@FA&ܱ@GkPA&[@@dA&"h@EA&lŗ@<aA&h@?١@A&~ N@@ܠA&}@CA&Q@IA&@jУA& @CA&)9@::A&@C4(A&:I@@ܠA&#y@1pA&Kƨ@> A&i/@5A&] _@3A&寎@= 1 A&nR@8[ A&@J:A&@EA&:@Oa@A&+@5A&Z@?١@A&$@ApA&*ǹ@6{A&³j@@::A&< o@3A&İ@;*A&MS&@M 1 A&U@1pA&^@G8A&< @CA&o;@&{A&k@6{A&ǁ%@B@A& !@D#A&ȒkQ@6{A& @M 1 A&ɣ@5A&,T7@H