SIMPLE = T / file does conform to FITS standard BITPIX = 16 / number of bits per data pixel NAXIS = 2 / number of data axes NAXIS1 = 51 / length of data axis 1 NAXIS2 = 51 / length of data axis 2 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 MESGNAME= 'XRT_IMAGE' / Name of the message TELESCOP= 'SWIFT ' / Telescope (mission) name INSTRUME= 'XRT ' / Instrument name OBS_ID = '00841583000' / Observation ID TARG_ID = '841583 ' / 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 = '2018-06-14T20:48:34' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 550702125.581632 / Start time DATE-OBS= '2018-06-14T20:48:45.6' / Start Date TSTOP = 550702125.681632 / Stop time DATE-END= '2018-06-14T20:48:45.7' / Stop Date UTCFINIT= -21.10596 / UTCF at TSTART TRIGGER = 841583 / Trigger Number FRAMENUM= 25535564 / CCD Frame Number HDUCLASS= 'OGIP ' / Format conforms to OGIP standards HDUCLAS1= 'IMAGE ' / Image data HDUCLAS2= 'TOTAL ' / Total data values DATAMODE= 'SHORTIMA' / XRT Mode for this data CTYPE1 = 'RA---TAN' / WCS axis type CRPIX1 = 25 / WCS Reference point CDELT1 = -6.548089087209E-04 / WCS coordinate increment CUNIT1 = 'deg ' / WCS axis unit CTYPE2 = 'DEC--TAN' / WCS axis type CRPIX2 = 25 / WCS Reference point CDELT2 = 6.548089087209E-04 / WCS coordinate increment CUNIT2 = 'deg ' / WCS axis unit APID = 1250 / Application Process Identifier PACKET1 = T / Data from packet #1 present PACKET2 = T / Data from packet #2 present PACKET3 = T / Data from packet #3 present BLANK = -1 / Null data TELAPSE = 0.0999999046325684 / TSTOP - TSTART ONTIME = 0.0999999046325684 / Time on target LIVETIME= 0.0999999046325684 / ONTIME multipled by DEADC EXPOSURE= 0.0999999046325684 / Total exposure, with all known corrections DEADC = 1. / Dead time correction INVGAIN = 4 / Inverse gain (data were divided by this value) RAWXCTRD= 154.620697021484 / [pixel] GRB RAWX coordinates CenTRoiD RAWYCTRD= 359.848083496094 / [pixel] GRB RAWY coordinates CenTRoiD XRA_OBJ = 244.981216430664 / [deg] XRT RA location of GRB or Object XDEC_OBJ= -15.6385011672974 / [deg] XRT DEC location of GRB or Object PA_PNT = 296.799560546875 / [deg] Roll angle from North towards East RAWXCEN = 155 / RAWX CENter image CRVAL1 = 244.981216430664 / WCS reference value RAWYCEN = 360 / RAWY CENter image CRVAL2 = -15.6385011672974 / WCS reference value STDVCTRD= 7.75605535507202 / STandard DeViation of CenTRoiD MAXSTDV = 12. / MAX STandard DeViation of centroid EVTCTRD = 262 / no. of EVenTs in the CenTRoiD window MINEVENT= 20 / MInimum No. of EVenTs required for centroid P2ITER = 3 / Number of iterations for phase2 algorithm MAXITER = 4 / MAX ITERation for phase2 algorithm CONVDIST= 0. / actual CONVergence DISTance MAXCONV = 0.0625 / MAX CONVergence distance XRTMODE = 2 / XRT MODE for image WAVEFORM= 134 / XRT waveform P1UTCC = -21.10596 / [s] Packet #1 UTC Correction time P1UTCCS = -22 / Packet #1 UTC Correction Seconds P1UTCCSS= 44702 / [2*10**(-5) s] Packet #1 UTC Correction SubSecoPKT1TIME= 550702128.34386 / [s] ccsds PacKeT #1 TIME=PKT1SEC+PKT1SUBS*2e-5 PKT1SEC = 550702128 / ccsds PacKeT #1 SEConds PKT1SUBS= 17193 / [2*10**(-5) s] ccsds PacKeT #1 SUBSeconds CHECKSUM= 'UaReaWRbUaRbaWRb' / HDU checksum updated 2018-06-14T20:48:56 DATASUM = '1068512936' / data unit checksum updated 2018-06-14T20:48:56 FLUXFACT= 570000015360. / Flux conversion factor P2UTCC = -21.10596 / [s] Packet #2 UTC Correction time P2UTCCS = -22 / Packet #2 UTC Correction Seconds P2UTCCSS= 44702 / [2*10**(-5) s] Packet #2 UTC Correction SubSecoPKT2TIME= 550702128.4635 / [s] ccsds PacKeT #2 TIME=PKT2SEC+PKT2SUBS*2e-5 PKT2SEC = 550702128 / ccsds PacKeT #2 SEConds PKT2SUBS= 23175 / [2*10**(-5) s] ccsds PacKeT #2 SUBSeconds BOREROW = 298.399993896484 / BOREsight ROW in RAWY BORECOL = 292.600006103516 / BOREsight COLumn in RAWX BOREPA = 0. / [deg] BOREsight roll (Position Angle) PLATESCA= 2.3573100566864 / [arcsec/pixel] PLATE SCAle SCYCORR = 0. / [arcsec] Spacecraft to XRT Y boresight corr SCZCORR = 0. / [arcsec] Spacecraft to XRT Z boresight corr SCPACORR= 0. / [deg] Spacecraft to XRT roll boresight corr TAMREFX1= 327.640014648438 / TAM Ref Window 1 X pos TAMREFY1= 237.199996948242 / TAM Ref Window 1 Y pos TAMREFX2= 261.324005126953 / TAM Ref Window 2 X pos TAMREFY2= 242. / TAM Ref Window 2 Y pos TAMTHETA= 17. / TAM THETA-t angle XRT-PSU-037 TAMOPTGN= 1.00999999046326 / TAM OPTical GaiN XRT-LUX-TN-095 TAMPRIPS= 9.49600028991699 / TAM PRImary window Plate Scale TAMSECPS= 5.65999984741211 / TAM SECondary window Plate Scale TAMSEQCN= 204238 / TAM image SEQuence CouNt TAMCTRDC= T / TAM CenTRoiD Calculated? TAMCORR = F / TAM CORRection enabled? NOMEXPO = 0.100000001490116 / [s] NOMinal EXPOsure for flux calculation RA_PNT = 245.092178344727 / [deg] Spacecraft RA DEC_PNT = -15.647424697876 / [deg] Spacecraft Dec GRBYXRT = 144.85221862793 / GRB Y in XRT Coords GRBZXRT = -357.790863037109 / GRB Z in XRT Coords XHIGHRA = 244.981218725621 / [deg] XRT HIGH precision GRB RA (double) XHIGHDEC= -15.638501518168 / [deg] XRT HIGH precision GRB DEC (double) WINHALFW= 25 / WINdow HALF Width MINSTDV = 5 / MIN STandard DeViation of centroid TLMVER = 3 / Telemetry version from packet #3 P3UTCC = -21.10596 / [s] Packet #3 UTC Correction time P3UTCCS = -22 / Packet #3 UTC Correction Seconds P3UTCCSS= 44702 / [2*10**(-5) s] Packet #3 UTC Correction SubSecoPKT3TIME= 550702128.54296 / [s] ccsds PacKeT #3 TIME=PKT3SEC+PKT3SUBS*2e-5 PKT3SEC = 550702128 / ccsds PacKeT #3 SEConds PKT3SUBS= 27148 / [2*10**(-5) s] ccsds PacKeT #3 SUBSeconds HISTORY HISTORY START PARAMETER list for xrttdrss_0.3.9 at 2018-06-14T16:48:56 HISTORY HISTORY P1 imagefile = /local/data/capella1/vxw/import/xrt_raw_image.fits HISTORY P2 spec1file = NONE HISTORY P3 spec2file = NONE HISTORY P4 posfile = CALDB HISTORY P5 imbias = -1 HISTORY P6 pdbias = -1 HISTORY P7 imbiasfile = CALDB HISTORY P8 pdbiasfile = CALDB HISTORY P9 outimagefile = /local/data/capella1/vxw/import/xrt_proc_image.fits HISTORY P10 outspec1file = xrt_proc_spec1.fits HISTORY P11 outspec2file = xrt_proc_spec2.fits HISTORY P12 tmpspec1file = xrt_raw_spec1temp.fits HISTORY P13 clobber = yes HISTORY P14 chatter = 3 HISTORY P15 history = yes HISTORY P16 dnthr = 9 HISTORY P17 convfact = 0.0 HISTORY P18 cleanup = yes HISTORY P19 mode = ql HISTORY HISTORY END PARAMETER list for xrttdrss_0.3.9 DNTHR = 9 / DN threshold to calculate flux HISTORY Keyword DNTHR write by xrttdrss_0.3.9 at 2018-06-14T16:48:56 HISTORY CALDB Bias file: HISTORY Used Bias value: 0 XRTBIAS = 0 / Bias calculated on ground [always applied] AMP = 2 / Amplifier node used for readout XRTTDRSS= T / TDRSS message processed by xrttdrss_0.3.9 task CROTA2 = -206.799560546875 ERRCTRD = 4.69918771887762 / error on the XRT centroid position HISTORY Keyword ERRCTRD write by xrttdrss_0.3.9 at 2018-06-14T16:48:56 SRCFLUX = 3.73052621526161E-07 / [erg/cm**2/s] source flux (0.3-10 keV) TOTALDN = 21264. / Total DN value after bias subtraction HISTORY Keyword DN write by xrttdrss_0.3.9 at 2018-06-14T16:48:56 RATEDN = 212640. / DN rate value (DN/EXPOSURE) HISTORY Keyword RATEDN write by xrttdrss_0.3.9 at 2018-06-14T16:48:56 HISTORY Keyword FLUX write by xrttdrss_0.3.9 at 2018-06-14T16:48:56 CONVFACT= 1.7543859176362E-12 / Conversion factor DN/s to 0.3-10keV flux HISTORY Keyword CONVFACT write by xrttdrss_0.3.9 at 2018-06-14T16:48:56 END 8 , ( 80L($< $D D”,(`P00TL€$,(„0lX$(T@$ @Ptp¼`PÈ(,H0P€ˆôÄôl P0L@<˜ø„ 0d¨p0LD,À”ÐÌLD488˜à<”ìlXl04 dÄ` \L`”ÌÄ´|L8$8@L8htT\¬˜,D<$88$`D@$,pP 0( @ D0$4