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 = '00829046000' / Observation ID TARG_ID = '829046 ' / 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 = 546444959.60792 / Start time DATE-OBS= '2018-04-26T14:15:59.6' / Start Date TSTOP = 546445161.31112 / Stop time DATE-END= '2018-04-26T14:19:21.3' / 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 = '2018-04-26T14:31:30' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -20.84756 / UTCF at TSTART CHECKSUM= 'bJdObGaObGaObGaO' / HDU checksum updated 2018-04-26T14:31:30 DATASUM = ' 0' / data unit checksum updated 2018-04-26T14:31:30 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 = 85 / 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 = '00829046000' / Observation ID TARG_ID = '829046 ' / 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 = '2018-04-26T14:31:30' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 546444959.60792 / Start time DATE-OBS= '2018-04-26T14:15:59.6' / Start Date TSTOP = 546445161.31112 / Stop time DATE-END= '2018-04-26T14:19:21.3' / Stop Date UTCFINIT= -20.84756 / 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 = 85 / Number of valid bins in the lightcurve TRIGGER = 829046 / Trigger Number XRA_OBJ = 57.4520416259766 / [deg] XRT RA location GRB or Object XDEC_OBJ= -48.7714653015137 / [deg] XRT DEC location GRb or Object TERMMODE= 3 / XRT termination mode TELAPSE = 201.703199982643 / TSTOP - TSTART ONTIME = 199.33203125 / Time on target LIVETIME= 199.33203125 / Ontime multiplied by DEADC EXPOSURE= 199.33203125 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -20.84756 / [s] UTC Correction TIME UTCCSEC = -21 / UTC Correction Seconds UTCCSUBS= 7622 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 546445163.8448 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 546445163 / ccsds PacKeT SEConds PKTSUBS = 42240 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'Lf7iMc4fLc4fLc4f' / HDU checksum updated 2018-04-26T14:31:30 DATASUM = '472318941' / data unit checksum updated 2018-04-26T14:31:30 END AI OSAI PrAI PJy@P(ĠAI PR@::AI Q[0@D#AI Q_@> AI Rm;@6{AI R޾@  AI S~@@dAI T#AI Vo~@AI W`@0Z- AI Y%O7@'AI Zf?@.OAI [.I@/AI \&@/& AI ^)@-AI _i7@+!@AI `@0Z- AI aH@(PAI c,%@*RAI dmZ@,UAI e6@/AI fk@'!`AI h0H@+ AI iqz%@(PAI jiY@*RAI kY@-AI m4I@'!`AI nu8@&U@AI o($@'!`AI p@0Z- AI r85@-AI sx@+!@AI t@'AI u$@-AI w;@-AI x|5@9 jAI y@,UAI zF@/& AI |?#@,UAI }sX@*RAI ~c5@'!`AI S@/& AI CB@/AI 2@/AI !@0Z- AI @/AI G@0G AI @0Z- AI @+!@AI @0G AI J@.OAI @1{@AI ̞@1&a@AI "@1&a@AI N}@4KAI m@,UAI ]@)AI L@)AI R