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 KEYMISS = T / Expect missing keywords TELESCOP= 'SWIFT ' / Telescope (mission) name INSTRUME= 'XRT ' / Instrument name OBS_ID = '01209401000' / Observation ID TARG_ID = '1209401 ' / 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 = '2024-01-17T16:12:58' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 727200729.10184 / Start time DATE-OBS= '2024-01-17T16:12:09.1' / Start Date TSTOP = 727200729.10184 / Stop time DATE-END= '2024-01-17T16:12:09.1' / Stop Date UTCFINIT= -32.74816 / UTCF at TSTART TRIGGER = 1209401 / Trigger Number FRAMENUM= 95283975 / CCD Frame Number HDUCLASS= 'OGIP ' / Format conforms to OGIP standards HDUCLAS1= 'IMAGE ' / Image data HDUCLAS2= 'TOTAL ' / Total data values DATAMODE= 'TDRSS_PS' / Instrument operating mode CTYPE1 = 'RAWX ' / WCS axis type CRPIX1 = 26 / WCS Reference point CDELT1 = 1 / WCS coordinate increment CUNIT1 = 'pixel ' / WCS axis unit CTYPE2 = 'RAWY ' / WCS axis type CRPIX2 = 26 / WCS Reference point CDELT2 = 1 / WCS coordinate increment CUNIT2 = 'pixel ' / WCS axis unit APID = 1250 / Application Process Identifier PACKET1 = F / Data from packet #1 present PACKET2 = T / Data from packet #2 present PACKET3 = T / Data from packet #3 present BLANK = -1 / Null data FLUXFACT= 570000015360. / Flux conversion factor P2UTCC = -32.74816 / [s] Packet #2 UTC Correction time P2UTCCS = -33 / Packet #2 UTC Correction Seconds P2UTCCSS= 12592 / [2*10**(-5) s] Packet #2 UTC Correction SubSecoPKT2TIME= 727200731.9423 / [s] ccsds PacKeT #2 TIME=PKT2SEC+PKT2SUBS*2e-5 PKT2SEC = 727200731 / ccsds PacKeT #2 SEConds PKT2SUBS= 47115 / [2*10**(-5) s] ccsds PacKeT #2 SUBSeconds DATAMISS= T / Expect missing data CHECKSUM= '9rUAHoUA9oUAGoUA' / HDU checksum updated 2024-01-17T16:13:02 DATASUM = '294392582' / data unit checksum updated 2024-01-17T16:13:02 BOREROW = 298.100006103516 / BOREsight ROW in RAWY BORECOL = 291.600006103516 / 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= 783330 / 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 = 299.413360595703 / [deg] Spacecraft RA DEC_PNT = 34.6767883300781 / [deg] Spacecraft Dec GRBYXRT = -210.880874633789 / GRB Y in XRT Coords GRBZXRT = -19.8967514038086 / GRB Z in XRT Coords XHIGHRA = 299.342080406999 / [deg] XRT HIGH precision GRB RA (double) XHIGHDEC= 34.6716342232182 / [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 = -32.74816 / [s] Packet #3 UTC Correction time P3UTCCS = -33 / Packet #3 UTC Correction Seconds P3UTCCSS= 12592 / [2*10**(-5) s] Packet #3 UTC Correction SubSecoPKT3TIME= 727200732.06168 / [s] ccsds PacKeT #3 TIME=PKT3SEC+PKT3SUBS*2e-5 PKT3SEC = 727200732 / ccsds PacKeT #3 SEConds PKT3SUBS= 3084 / [2*10**(-5) s] ccsds PacKeT #3 SUBSeconds END   &)  (#O'=(U}  0;iT!" l )Q#1 4!& @#'"