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 = '00841583000' / Observation ID TARG_ID = '841583 ' / 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 = 550702128.41234 / Start time DATE-OBS= '2018-06-14T20:48:48.4' / Start Date TSTOP = 550702234.05038 / Stop time DATE-END= '2018-06-14T20:50:34.1' / 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 = '2018-06-14T20:50:23' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -21.10594 / UTCF at TSTART CHECKSUM= 'kKgOnHdNkHdNkHdN' / HDU checksum updated 2018-06-14T20:50:23 DATASUM = ' 0' / data unit checksum updated 2018-06-14T20:50:23 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 = '00841583000' / Observation ID TARG_ID = '841583 ' / 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 = '2018-06-14T20:50:23' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 550702128.41234 / Start time DATE-OBS= '2018-06-14T20:48:48.4' / Start Date TSTOP = 550702234.05038 / Stop time DATE-END= '2018-06-14T20:50:34.1' / Stop Date UTCFINIT= -21.10594 / 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 = 841583 / Trigger Number XRA_OBJ = 245.092147827148 / [deg] XRT RA location GRB or Object XDEC_OBJ= -15.647479057312 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.638039946556 / 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= -21.10594 / [s] UTC Correction TIME UTCCSEC = -22 / UTC Correction Seconds UTCCSUBS= 44703 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 550702234.1267 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 550702234 / ccsds PacKeT SEConds PKTSUBS = 6335 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'jaAQjWANjaANjWAN' / HDU checksum updated 2018-06-14T20:50:23 DATASUM = '3739503911' / data unit checksum updated 2018-06-14T20:50:23 END AÀi†4ÇAÀi†kž®AÀi†¸>ê@nã AÀi†@â@j²©AÀi†É…I@j:ÁAÀi†R(x@s÷ÀAÀi†ÚË§@sC%ÀAÀi†cnÖ@ihëAÀi†ì@iàÓAÀi†t´@hñàAÀi†ýW¼@l°C AÀi†…úì@iàÓAÀi†ž@lÎ= AÀi†—AJ@l8[AÀi†äz@jîAÀi†¨‡©@jX»AÀi† 1*Ø@kf…AÀi† ¹Í`@k¢yAÀi†!Bp@iJñAÀi†!Ë¾@h=&àAÀi†"S¶í@hyàAÀi†"ÜZ@i,÷AÀi†#dýL@laAÀi†#í {@gMVàAÀi†$vC@jX»AÀi†$þæ2@m(+ AÀi†%‡ˆ¹@gã8àAÀi†&+é@d›àÀAÀi†&˜Ï@oË AÀi†'!rG@kÞmAÀi†'ªw@h2àAÀi†(2¸¦@pU» AÀi†(»[-@p¯© AÀi†)Cþ]@iÂÙAÀi†)Ì¡Œ@hñàAÀi†*UD»@pF¾ AÀi†*Ýçê@iÂÙAÀi†+f‹@iJñAÀi†+ï.I@h[ àAÀi†,wÐÐ@iþÍAÀi†-t@fÕnàAÀi†-‰/@iàÓAÀi†.º^@k„AÀi†.š]@m 1 AÀi†/#½@l8[AÀi†/«£ì@gã8àAÀi†04Ft@jÐ£AÀi†0¼é£@m AÀi†1EŒÒ@h,àAÀi†1Î0@l’I AÀi†2VÓ1@i¤ßAÀi†2ßv`@jvµAÀi†3h@gkPàAÀi†3ð¼@h—àAÀi†4y_F@p‘¯ AÀi†5u@kÀsAÀi†5Š¥¤@j:ÁAÀi†6HÔ@m AÀi†6›ì@m AÀi†7$2@o³@AÀi†72a@laAÀi†85Ôé@l’I AÀi†8¾x@mF% AÀi†9GH@j”¯AÀi†9Ï¾w@kügAÀi†:Xa¦@p¯© AÀi†:áÕ@iÂÙAÀi†;i¨@kf…AÀi†;òJŒ@iJñAÀi†Ö¡@j:ÁAÀi†>yÑ@k„AÀi†?&@qŸy AÀi†?®¿‡@iüàAÀi†@7b·@pU» AÀi†@Àæ@iJñAÀi†AH©@m 1 AÀi†AÑLD@jvµAÀi†BYït@oa¹@AÀi†Bâ’£@jîAÀi†Ck5Ò@h=&àAÀi†CóØZ@oÙ¡@AÀi†D|{‰@kÞmAÀi†E¸@iJñAÀi†EÁè@l°C AÀi†Fe@qE‹ AÀi†FŸF@nã AÀi†G'«u@gã8àAÀi†G°Mý@l°C AÀi†H8ñ,@pÍ£ AÀi†HÁ”[@j”¯AÀi†IJ7‹@l°C AÀi†IÒÚº@kÞmAÀi†J[}é@iþÍAÀi†Jä!@g‰JàAÀi†KlÃ @hÓàAÀi†KõfÏ@ltO AÀi†L~ ÿ@hyà