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 = '00750337000' / Observation ID TARG_ID = '750337 ' / 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 = 515084041.20956 / Start time DATE-OBS= '2017-04-28T14:54:01.2' / Start Date TSTOP = 515084287.73098 / Stop time DATE-END= '2017-04-28T14:58:07.7' / 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 = '2017-04-28T14:59:17' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -18.97858 / UTCF at TSTART CHECKSUM= 'ZFcKdEZKZEbKdEZK' / HDU checksum updated 2017-04-28T14:59:17 DATASUM = ' 0' / data unit checksum updated 2017-04-28T14:59:17 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 = '00750337000' / Observation ID TARG_ID = '750337 ' / 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 = '2017-04-28T14:59:17' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 515084041.20956 / Start time DATE-OBS= '2017-04-28T14:54:01.2' / Start Date TSTOP = 515084287.73098 / Stop time DATE-END= '2017-04-28T14:58:07.7' / Stop Date UTCFINIT= -18.97858 / 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 = 750337 / Trigger Number XRA_OBJ = 187.828567504883 / [deg] XRT RA location GRB or Object XDEC_OBJ= -7.96100473403931 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 246.521420001984 / TSTOP - TSTART ONTIME = 244.140426635742 / Time on target LIVETIME= 244.140426635742 / Ontime multiplied by DEADC EXPOSURE= 244.140426635742 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -18.97858 / [s] UTC Correction TIME UTCCSEC = -19 / UTC Correction Seconds UTCCSUBS= 1071 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 515084287.85102 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 515084287 / ccsds PacKeT SEConds PKTSUBS = 42551 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'FAhEH8Z9FAfCF5Z9' / HDU checksum updated 2017-04-28T14:59:17 DATASUM = '2000780632' / data unit checksum updated 2017-04-28T14:59:17 END A¾³ 5¥¹A¾³ £UGA¾³ -kf@Rø4ÀA¾³>±Ä@*:ÁA¾³Oø#A¾³Œ@'!è`A¾³~¦@,·U€A¾³^_@/ñàA¾³>@/ñàA¾³”Ò@.O½ÀA¾³þÚ@,·U€A¾³ —Þ”@+ë!@A¾³#¾M@/ñàA¾³%›ŸV@+ë!@A¾³(@1&a@A¾³*Ÿ^È@+ë!@A¾³-!>@/ñàA¾³/£Š@/ñàA¾³2$ÿC@-ƒ‰ A¾³4¦Þü@1&a@A¾³7(À@-ƒ‰ A¾³9ªŸ¾@0ÀG A¾³<,x@,·U€A¾³>®_1@,·U€A¾³A0@:@+ë!@A¾³C²ó@/ñàA¾³F3ÿ¬@1&a@A¾³Hµàµ@+ë!@A¾³K7Àn@.O½ÀA¾³M¹ '@+ë!@A¾³P;á@.O½ÀA¾³R½`é@-ƒ‰ A¾³U?@£@,·U€A¾³WÁ \@.O½ÀA¾³ZCe@/ñàA¾³\Äá@+ë!@A¾³_FÀ×@,·U€A¾³aÈ @.O½ÀA¾³dJ™@+ë!@A¾³fÌaR@-ƒ‰ A¾³iNA@0Z- A¾³kÐ Å@.O½ÀA¾³nRÍ@,·U€A¾³pÓá‡@/è& A¾³sUÁ@@/ñàA¾³u×¢I@0ÀG A¾³xY‚@0ÀG A¾³zÛa»@/è& A¾³}]At@.O½ÀA¾³ß"}@/ñàA¾³‚a6@/ñàA¾³„âáï@.O½ÀA¾³‡dÁ©@+ë!@A¾³‰æ¢±@.O½ÀA¾³Œh‚k@1ò•`A¾³Žêb$@,·U€A¾³‘lC-@/ñàA¾³“î"æ@*R¹A¾³–pŸ@,·U€A¾³˜ñâX@-ƒ‰ A¾³›sÃa@1Œ{@A¾³õ£@+í A¾³ w‚Ô@1&a@A¾³¢ùb@1Œ{@A¾³¥{BF@+ë!@A¾³§ý!ÿ@-ƒ‰ A¾³ª¸@6U´@A¾³âÁ@+í A¾³¯‚Âz@1&a@A¾³²¢4@/è& A¾³´†í@-ƒ‰ A¾³·bö@-ƒ‰ A¾³¹ŠB¯@/ñàA¾³¼"h@1ò•`A¾³¾Ž!@0Z- A¾³Áã*@0ÀG A¾³Ã‘Âã@0Z- A¾³Æ¢œ@,·U€A¾³È•ƒ¥@/ñàA¾³Ëc^@'î€A¾³Í™C@0Z- A¾³Ð"Ñ@2¾É€A¾³ÒÚ@-ƒ‰ A¾³Õã“@/è& A¾³× ÃL@.O½ÀA¾³Ú"£@1&a@A¾³Ü¤„@1&a@A¾³ß&cÇ@/è& A¾³á¨C@1Œ{@A¾³ä*!ê@/è& A¾³æ¬ó@2X¯€A¾³é-â¬@/ñàA¾³ë¯Âe@.O½ÀA¾³î1¢@1&a@A¾³ð³ƒ'@/è& A¾³ó5bá@/ñàA¾³õ·Bš@/è& A¾³ø9#£@.O½ÀA¾³ú»\@1Œ{@A¾³ý<ã@1Œ{@