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  = '01000926000'        / Observation ID                                 TARG_ID = '1000926 '           / 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  =      624865816.19316 / Start time                                     DATE-OBS= '2020-10-20T05:50:16.2' / Start Date                                  TSTOP   =      624866064.17126 / Stop time                                      DATE-END= '2020-10-20T05:54:24.2' / 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    = '2020-10-20T05:55:15' / file creation date (YYYY-MM-DDThh:mm:ss UT)   UTCFINIT=            -25.83632 / UTCF at TSTART                                 CHECKSUM= 'fOgRiMdRfMdRfMdR'   / HDU checksum updated 2020-10-20T05:55:15       DATASUM = '         0'         / data unit checksum updated 2020-10-20T05:55:15 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  = '01000926000'        / Observation ID                                 TARG_ID = '1000926 '           / 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    = '2020-10-20T05:55:15' / file creation date (YYYY-MM-DDThh:mm:ss UT)   TSTART  =      624865816.19316 / Start time                                     DATE-OBS= '2020-10-20T05:50:16.2' / Start Date                                  TSTOP   =      624866064.17126 / Stop time                                      DATE-END= '2020-10-20T05:54:24.2' / Stop Date                                   UTCFINIT=            -25.83632 / 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 =              1000926 / Trigger Number                                 XRA_OBJ =     261.229614257812 / [deg] XRT RA location GRB or Object            XDEC_OBJ=     31.4129447937012 / [deg] XRT DEC location GRb or Object           TERMMODE=                    0 / XRT termination mode                           TELAPSE =     247.978099942207 / TSTOP - TSTART                                 ONTIME  =     245.580215454102 / Time on target                                 LIVETIME=     245.580215454102 / Ontime multiplied by DEADC                     EXPOSURE=     245.580215454102 / Total exposure, with all known correction      DEADC   =                   1. / dead time correction                           UTCCTIME=            -25.83632 / [s] UTC Correction TIME                        UTCCSEC =                  -26 / UTC Correction Seconds                         UTCCSUBS=                 8184 / [2*10**(-5) s] UTC Correction SUBSeconds       PKTTIME =      624866064.24482 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5      PKTSEC  =            624866064 / ccsds PacKeT SEConds                           PKTSUBS =                12241 / [2*10**(-5) s] ccsds PacKeT SUBSeconds         APID    =                 1253 / Application Process Identifier                 CHECKSUM= 'OlQKQiQKOiQKOiQK'   / HDU checksum updated 2020-10-20T05:55:15       DATASUM = '3920844360'         / data unit checksum updated 2020-10-20T05:55:15 END                                                                             AŸY�xAŸYO��AŸY���@`���AŸY
!m	?��
 AŸY�@4W1�AŸY��l@1&a@AŸY?�I@4W1�AŸY��%@2X��AŸY��@6U�@AŸYq�@3��AŸYCa�@0Z- AŸY�Q�@0�G AŸY�At@5�� AŸY1Q@1�`AŸYG!�@0�G AŸY��@2�ɀAŸY�
�@/��AŸY 	�k@0Z- AŸY!J�H@3$�AŸY"��$@2X��AŸY#���@0Z- AŸY%
��@/�& AŸY&N�b@0�G AŸY'��?@0�G AŸY(Ё@3$�AŸY*p�@2�ɀAŸY+R`�@2�ɀAŸY,�P�@0Z- AŸY-�@�@1�{@AŸY/0j@0�G AŸY0V G@0�G AŸY1��@/��AŸY2��@1&a@AŸY4��@3���AŸY5Y�a@1�`AŸY6��>@3���AŸY7��@2�ɀAŸY9��@1�`AŸY:]��@3$�AŸY;���@1�{@AŸY<��@2�ɀAŸY> oi@0Z- AŸY?a_F@2�ɀAŸY@�O�@1�`AŸYA�?�@/�& AŸYC$/�@1�{@AŸYDe`@1�`AŸYE�=@1&a@AŸYF��@1�{@AŸYH'�@/�& AŸYIh�z@0Z- AŸYJ��W@0Z- AŸYK�4@0�G AŸYM+�@1�{@AŸYNl��@5�� AŸYO���@9��AŸYP�~�@0�G AŸYR/n�@1&a@AŸYSp^_@4�K�AŸYT�N<@.O��AŸYU�>@1&a@AŸYW3.�@0Z- AŸYXty@0�G AŸYY�V@/�& AŸYZ��3@2X��AŸY\6�@1�`AŸY]w��@0Z- AŸY^��p@2X��AŸY_��M@1�`AŸYa:�)@/��AŸYb{�@/�& AŸYc���@/��AŸYd�}�@0Z- AŸYf>m�@1�{@AŸYg]y@1&a@AŸYh�M�@1&a@AŸYj
=�@1�`AŸYkB-�@.O��AŸYl��@/�& AŸYm�
o@1&a@AŸYo�L@5� AŸYpE�)@.O��AŸYq��@1�{@AŸYr���@0Z- AŸYt��@0�G AŸYuI��@1�`AŸYv��x@1�`AŸYwˌ�@0�G AŸYy}�@1&a@AŸYzMm]@/��AŸY{�]:@0�G AŸY|�M@/�& AŸY~<�@0�G AŸYQ,�@2�ɀAŸY���@3$�AŸY���@1�{@AŸY��e@1&a@AŸY�T�B@0�G AŸY���@0�G AŸY����@1�{@