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 = '00348650000' / Observation ID TARG_ID = '348650 ' / 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 = 260793005.9946 / Start time DATE-OBS= '2009-04-07T10:28:24' TSTOP = 260793111.5431 / Stop time DATE-END= '2009-04-07T10:31:50' 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 = '2009-04-13T04:31:36' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -4.63884000000000 / [s] UTCF at TSTART CHECKSUM= 'kfkAkdk9kdkAkdk9' / HDU checksum updated 2009-04-13T05:34:26 DATASUM = ' 0' / data unit checksum updated 2009-04-13T04:31:36 OBJECT = 'GRB090407' PROCVER = '3.12.9 ' / Processing script version SOFTVER = 'Hea_19Sep2007_V6.3.2_Swift_Rel2.7.2(Bld21.2)_19Sep2007' / HEASOFT andCALDBVER= 'b20070924_u20071106_x20071101_m20071023' / CALDB index versions used ATTFLAG = '100 ' / 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 = '00348650000' / Observation ID TARG_ID = '348650 ' / 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 = '2009-04-13T04:31:36' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 260793005.9946 / Start time DATE-OBS= '2009-04-07T10:30:04' TSTOP = 260793111.5431 / Stop time DATE-END= '2009-04-07T10:31:50' UTCFINIT= -4.63884000000000 / [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 = 348650 / Trigger Number XRA_OBJ = 68.9496154785156 / [deg] XRT RA location GRB or Object XDEC_OBJ= -12.6606884002686 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.548500001431 / 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= -4.63884 / [s] UTC Correction TIME UTCCSEC = -5 / UTC Correction Seconds UTCCSUBS= 18058 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 260793111.645 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 260793111 / ccsds PacKeT SEConds PKTSUBS = 32250 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'TaNUVaLUTaLUTaLU' / HDU checksum updated 2009-04-13T05:34:26 DATASUM = '3648354816' / data unit checksum updated 2009-04-13T04:31:36 PROCVER = '3.12.9 ' / Processing script version SOFTVER = 'Hea_19Sep2007_V6.3.2_Swift_Rel2.7.2(Bld21.2)_19Sep2007' / HEASOFT andCALDBVER= 'b20070924_u20071106_x20071101_m20071023' / CALDB index versions used ATTFLAG = '100 ' / Orgin of attitude information END A[<6A\ؘA]f'@W8A_E@0ܠAb"}@BDXAdE @ApAfg@4Ah@9JAj@= Al7v@LaAn3@?١@AqP@@ܠAs6ݭ@> AuYg@7kPAw{@- AyE@@dA{ c@@ܠA} @9JAŀ">@::Ał(@3AńK;@B@Aņmu@M 1 AňU2@> AŊP@@dAŌl @UǤAŎ@H[ Aő@LaAœ=@KyAŕ_c@PAŗ&@VAř>@RDXAś?@Oa@Aŝ̸@SpAŠ Yu@WDAŢ.@dAŤQpP@\= AŦs @aAŨ+@c AŪ@XAŬ۞@bLAŮ*@dAű @[mAųCD=@] Aŵe@d_Aŷ]@`dAŹ@YAŻt@[*AŽ@\VU An@VhA5+@X,AWI@VAz/@[*AȜ@YAʿH@R@A=@UA_[@SA&@M AIv6@UǤAl@J:A׎@GkPAٱm@QTAӦ@EA3H@K*A@] A;L@IJA]@Q|Ac@J:AZ@V?Azx@IA5@EA @IA- @G8AO@IAr7@ATAH@ATAQ@4A@> Ag@> A@> AA~@LaAd x@@ܠA5@5A"S@DA ˯@<aA ;@::AȊ@8[ A3UG@2@AU@FhAxi@8[ A@@IJA@5A@V{A@::A %&@F{A"GS@ApA$j@@= 1 A&@EA(Y@D#A*@G8A,m@C4(