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 = '00756284000' / Observation ID TARG_ID = '756284 ' / 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 = 518570591.59398 / Start time DATE-OBS= '2017-06-07T23:23:11.6' / Start Date TSTOP = 518570697.22878 / Stop time DATE-END= '2017-06-07T23:24:57.2' / 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 = '2017-06-07T23:24:45' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -19.18206 / UTCF at TSTART CHECKSUM= 'ZIaIhIWIZIaIfIWI' / HDU checksum updated 2017-06-07T23:24:45 DATASUM = ' 0' / data unit checksum updated 2017-06-07T23:24:45 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 = '00756284000' / Observation ID TARG_ID = '756284 ' / 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 = '2017-06-07T23:24:45' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 518570591.59398 / Start time DATE-OBS= '2017-06-07T23:23:11.6' / Start Date TSTOP = 518570697.22878 / Stop time DATE-END= '2017-06-07T23:24:57.2' / Stop Date UTCFINIT= -19.18206 / 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 = 756284 / Trigger Number XRA_OBJ = 7.36038589477539 / [deg] XRT RA location GRB or Object XDEC_OBJ= 9.24337005615234 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.634799957275 / 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= -19.18206 / [s] UTC Correction TIME UTCCSEC = -20 / UTC Correction Seconds UTCCSUBS= 40897 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 518570697.34168 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 518570697 / ccsds PacKeT SEConds PKTSUBS = 17084 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= '76b9A5Z875a8A5Y8' / HDU checksum updated 2017-06-07T23:24:45 DATASUM = '2148102821' / data unit checksum updated 2017-06-07T23:24:45 END A_A`QA`J8@pAa@f?AbV@eǤAc@b:Ada@hAer@cR"Ag@e1Ah2@c4(Ai(w@c.Aj9M@d}AkK\@fhAl\I@fnAmm@iAn~w@n Ao@jXAp`@iAq@o ArR@kfAs3@o% Atwp@n5 Au@oC Aw .@nq AxJ@pAy+@pAz<@qA{N @m 1 A|_ag@qA}p@pUA~@n A33@qEA€y@qTA@oC A‚@qpAƒJ@m A„m@iA…@p(ĠA‡ @jXAˆ`@l7 A‰.H@fnAŠ?@f?A‹Q4@f!AŒby@gkPAs#@emAŽ@iAJ@hA?@j:A‘M@fA’@ftA“a@dA”@b&^A•)@gMVA—3@bdA˜ y@cA™1@bbRAšC@b4A›TJb@g/\Aœe@_١@Av@aTAž~@bFAŸa=@] A @`(ĠA¡@e1A¢4Y@] 1 A£z@ZA¤@`A¦@`dA§K4@] A¨#C@`dA©4֡@^ AªF@_a@A«Wc^@aTA¬hm@`A­y|@ZA®3@arA¯z:@`ܠA°@WDA±@W8A²J@arA³@\aA´s@apA¶@W8A·b@`A¸&@WkPA¹7N@UOAºI4@YA»Zy@V?A¼k@`FA½}y@X[ A¾K@XA¿@W8A@ZAT@YAc@X,A@\aA @[*A4/@WDAz@\aA)@Vt