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 = '00635790000' / Observation ID TARG_ID = '635790 ' / 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 = 448705616.20952 / Start time DATE-OBS= '2015-03-22T08:26:56.2' / Start Date TSTOP = 448705721.8199 / Stop time DATE-END= '2015-03-22T08:28:41.8' / 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 = '2015-03-22T08:29:37' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -13.34276 / UTCF at TSTART CHECKSUM= 'eGcMfFcJeFcJeFcJ' / HDU checksum updated 2015-03-22T08:29:37 DATASUM = ' 0' / data unit checksum updated 2015-03-22T08:29:37 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 = '00635790000' / Observation ID TARG_ID = '635790 ' / 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 = '2015-03-22T08:29:37' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 448705616.20952 / Start time DATE-OBS= '2015-03-22T08:26:56.2' / Start Date TSTOP = 448705721.8199 / Stop time DATE-END= '2015-03-22T08:28:41.8' / Stop Date UTCFINIT= -13.34276 / 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 = 635790 / Trigger Number XRA_OBJ = 308.212799072266 / [deg] XRT RA location GRB or Object XDEC_OBJ= 41.4192733764648 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.610379993916 / 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= -13.34276 / [s] UTC Correction TIME UTCCSEC = -14 / UTC Correction Seconds UTCCSUBS= 32862 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 448705721.8448 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 448705721 / ccsds PacKeT SEConds PKTSUBS = 42240 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'cJOgc9NZcGNfc9NZ' / HDU checksum updated 2015-03-22T08:29:37 DATASUM = '1400436004' / data unit checksum updated 2015-03-22T08:29:37 END AP5APQYAQ5@SARF@GkPASX@@FATi^@QTAUz@TAV @QTAW0j@Nq AXv@QpAY@UAZ6@FA[H@IA\@XA^R@P(ĠA_a@QpA`'_p@IJAa8@PܠAbI-@XAc[2@PܠAdlx@V?Ae}H@GkPAfW@QTAgJ@HAh@J:Ai$@IJAj@ZAkb@EAl?@> AnN@PAo4@FhAp*{ @LaAq;j@M 1 ArM@Oa@As^K@CAto@KyAuE@PAv@PdAwe@R4Ax`@LaAy@SAz6@FhA{},@J:A|;@N A~ @X,AN@X[ A-W@RdA>f@KyAP @G8Aag#@= 1 Ar@CA@D#A8@H[ AN@?١@A]@UǤA @UAQ@FhAx@CA@QTA"@> AiD@H[ A0S@GkPAA@CAS;@M Ado@G8Au@K*A @T_AS;@QTA@PdA@@ܠA%@> Akf@J:A@] A@X[ A=2@M A"@KyA3@T#AEM@M 1 AVU\@ApAg@CAx@R@A'(@IAm@H[ A@FhAD@J:A?S@QpA@IJA@M 1 Ao@JAW~@;*A%@SA6@YAH)J@PAYo@H[ Aj@FhA{e@FhAB@Q|A"@\aA@P(ĠA@@F