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 = '00500914000' / Observation ID TARG_ID = '500914 ' / Target ID SEG_NUM = '0 ' / Segment number TIMESYS = 'TT ' / time system MJDREFI = 51910 / MJD reference day 01 Jan 2001 00:00:00 MJDREFF = 0.00074287037 / MJD reference (fraction of day) 01 Jan 2001 00:TIMEUNIT= 's ' / Time unit for timing header keywords TIERRELA= 1.0E-08 / [s/s] Estimated relative clock rate error TIERABSO= 1. / [s] Estimated absolute clock offset error TSTART = 335393059.61068 / Start time DATE-OBS= '2011-08-18T20:37:51' TSTOP = 335393226.76058 / Stop time DATE-END= '2011-08-18T20:47:05' CLOCKAPP= F / If clock correction are applied (F/T) ORIGIN = 'GSFC ' / Source of FITS file CREATOR = 'TDRSS2FITS V3.22' / Program that created this FITS file TLM2FITS= 'V3.22 ' / Telemetry converter version number DATE = '2011-08-24T11:14:41' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -7.27416000000000 / [s] UTCF at TSTART CHECKSUM= 'Haa8IZW5Haa5HWU5' / HDU checksum updated 2011-08-24T14:54:16 DATASUM = ' 0' / data unit checksum updated 2011-08-24T11:14:41 OBJECT = 'GRB110818a' PROCVER = '3.14.1 ' / Processing script version SOFTVER = 'Hea_28Sep2010_V6.10_Swift_Rel3.7(Bld26)_06Jul2010' / HEASOFT and SwifCALDBVER= 'b20090130_u20110131_x20100802_m20110801' / CALDB index versions used ATTFLAG = '111 ' / Orgin of attitude information 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 = '00500914000' / Observation ID TARG_ID = '500914 ' / Target ID SEG_NUM = '0 ' / Segment number CREATOR = 'TDRSS2FITS V3.22' / Program that created this FITS file ORIGIN = 'GSFC ' / Source of FITS file TLM2FITS= 'V3.22 ' / 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-8 / [s/s] relative errors expressed as rate TIERABSO= 1.0 / [s] timing precision in seconds CLOCKAPP= F / If clock correction are applied (F/T) TIMEREF = 'LOCAL ' / Time reference (barycenter/local) TASSIGN = 'SATELLITE' / Time assigned by clock DATE = '2011-08-24T11:14:41' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 335393059.61068 / Start time DATE-OBS= '2011-08-18T20:44:18' TSTOP = 335393226.76058 / Stop time DATE-END= '2011-08-18T20:47:05' UTCFINIT= -7.27416000000000 / [s] 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 = 500914 / Trigger Number XRA_OBJ = 317.374725341797 / [deg] XRT RA location GRB or Object XDEC_OBJ= -63.9805793762207 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 167.149900019169 / TSTOP - TSTART ONTIME = 164.951553344727 / Time on target LIVETIME= 164.951553344727 / Ontime multiplied by DEADC EXPOSURE= 164.951553344727 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -7.27416 / [s] UTC Correction TIME UTCCSEC = -8 / UTC Correction Seconds UTCCSUBS= 36292 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 335393226.84496 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 335393226 / ccsds PacKeT SEConds PKTSUBS = 42248 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'BaeTEXeTBaeTBUeT' / HDU checksum updated 2011-08-24T14:54:16 DATASUM = '684215419' / data unit checksum updated 2011-08-24T11:14:41 PROCVER = '3.14.1 ' / Processing script version SOFTVER = 'Hea_28Sep2010_V6.10_Swift_Rel3.7(Bld26)_06Jul2010' / HEASOFT and SwifCALDBVER= 'b20090130_u20110131_x20100802_m20110801' / CALDB index versions used ATTFLAG = '111 ' / Orgin of attitude information END A³ý±#œU†A³ý±$ ÅA³ý±$‰^ž@ZvµA³ý±%š¤ý@*:ÁA³ý±&«ë[@M 1 A³ý±'½0j@ ú A³ý±(ÎvÉ@/Ù¡@A³ý±)ß½'@ Ü A³ý±*ñ6@7kPàA³ý±,H•@ú A³ý±-Žó@&{€àA³ý±.$ÕR@ú A³ý±/6°@-ú A³ý±0G`¿@ Ü A³ý±1X§@{€àA³ý±2ií|@<aA³ý±3{3Û@ ú A³ý±4Œz:@@d¸ A³ý±5À˜@-ú A³ý±6¯÷@"¼@ A³ý±7ÀMU@"¼@ A³ý±8Ñ“´@YÂÙA³ý±9âÚ@ú A³ý±:ô!@&{€àA³ý±<e€@{€àA³ý±=ª@0Ü A³ý±>'ðí@ú A³ý±?97L@ Ü A³ý±@J}ª@$›àÀA³ý±A[Ä @¼@ A³ý±Bm g@;*‘A³ý±C~Ov@7kPàA³ý±D•Õ@J²©A³ý±E Ü3@ú A³ý±F²"’@3¬ÀA³ý±GÃhñ@¼@ A³ý±HÔ¯O@<aA³ý±Iåõ®@1Ìp A³ý±J÷<@1Ìp A³ý±L@H[ àA³ý±MÇz@:ÁA³ý±N+ Ø@([ àA³ý±O-@IÂÙA³ý±WÆ„Œ@¼@ A³ý±X×Êê@1Ìp A³ý±YéI@*:ÁA³ý±ZúW¨@ Ü A³ý±\ž@:ÁA³ý±]äe@3¬ÀA³ý±^.*Ã@/Ù¡@A³ý±_?oÒ@{€àA³ý±`P¶1@{€àA³ý±aaü?ýú A³ý±f{_@B‹¼€A³ý±hý=†@B¾É€A³ý±kŽ@Aò•`A³ý±nþH@>O½ÀA³ý±p‚Þ@?‚A³ý±s½º@=é£ A³ý±u†s@@Z- A³ý±x},@A&a@A³ý±zŠ\æ@@ÀG A³ý±}<Ÿ@@óT@A³ý±ŽX@@' A³ý±‚ýa@=é£ A³ý±„‘ÛË@?è& A³ý±‡»„@@' A³ý±‰•œ@Aò•`A³ý±Œzö@@: A³ý±Ž™Z¯@B%¢`A³ý±‘;¸@>O½ÀA³ý±“q@A¿ˆ`A³ý±–û+@B%¢`A³ý±˜ Úä@Aò•`A³ý±›"º@C¾ ÀA³ý±¤›¦@=é£ A³ý± &z@?ñàA³ý±¢¨YÉ@?‚A³ý±¥*:Ò@C$ã A³ý±§¬;@@' A³ý±ª-øô@@ÀG A³ý±¬¯Ùý@=o€A³ý±¯1¹¶@B%¢`A³ý±±³˜ @@Z- A³ý±´5y)@@óT@A³ý±¶·Xâ@@' A³ý±¹97L@>µ×àA³ý±»»U@@Z- A³ý±¾<ø@=o€A³ý±À¾×Ç@@: A³ý±Ã@·€@?è& A³ý±ÅÂ—9@>O½ÀA³ý±ÈDvó@=é£