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= 'UVOTA   '           / Instrument name                                FILTER  = 'WHITE   '           / FILTER used in exposure                        DETNAM  = '2000    '           / WHEELPOS                                       OBS_ID  = '01061687000'        / Observation ID                                 TARG_ID = '1061687 '           / 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  =       649020036.0689 / Start time                                     DATE-OBS= '2021-07-26T19:20:36.1' / Start Date                                  TSTOP   =      649020185.92586 / Stop time                                      DATE-END= '2021-07-26T19:23:05.9' / 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    = '2021-07-26T19:26:35' / file creation date (YYYY-MM-DDThh:mm:ss UT)   UTCFINIT=            -27.43896 / UTCF at TSTART                                 CHECKSUM= 'HfebKZcZHfcaHZcY'   / HDU checksum updated 2021-07-26T19:26:35       DATASUM = '         0'         / data unit checksum updated 2021-07-26T19:26:35 END                                                                                                                                                                                                                                                                                                                                                                                                             XTENSION= 'IMAGE   '           / IMAGE extension                                BITPIX  =                   32 / number of bits per data pixel                  NAXIS   =                    2 / number of data axes                            NAXIS1  =                  160 / length of data axis 1                          NAXIS2  =                  160 / length of data axis 2                          PCOUNT  =                    0 / required keyword; must = 0                     GCOUNT  =                    1 / required keyword; must = 1                     MESGNAME= 'UVOT_GENI_IMAGE'    / Name of the message                            TELESCOP= 'SWIFT   '           / Telescope (mission) name                       INSTRUME= 'UVOTA   '           / Instrument name                                OBS_ID  = '01061687000'        / Observation ID                                 TARG_ID = '1061687 '           / 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    = '2021-07-26T19:26:35' / file creation date (YYYY-MM-DDThh:mm:ss UT)   UTCFINIT=            -27.43896 / UTCF at TSTART                                 TSTART  =       649020036.0689 / Start time                                     DATE-OBS= '2021-07-26T19:20:36.1' / Start Date                                  TSTOP   =      649020185.92586 / Stop time                                      DATE-END= '2021-07-26T19:23:05.9' / Stop Date                                   TELAPSE =     149.856960058212 / TSTOP - TSTART                                 ONTIME  =     149.856960058212 / Sum of GTIs                                    LIVETIME=     149.856960058212 / Ontime multiplied by DEADC                     EXPOSURE=     149.856960058212 / Total exposure, with all known correction      DEADC   =                   1. / dead time correction                           EXTNAME = 'wh649020036I'       / Extension name                                 HDUCLASS= 'OGIP    '           / Format conforms to OGIP standards              HDUCLAS1= 'IMAGE   '           / Image data                                     HDUCLAS2= 'TOTAL   '           / Total data values                              DATAMODE= 'IMAGEEVENT'         / Instrument operating mode                      EXPID   =            649020036 / uvot EXPosure ID                               FILTER  = 'WHITE   '           / FILTER used in exposure                        DETNAM  = '2000    '           / WHEELPOS                                       RA_PNT  =     193.335302954246 / [deg] Ra Pointing                              DEC_PNT =     19.1891973059815 / [deg] Dec Pointing                             PA_PNT  =             282.3509 / [deg] Position angle (roll)                    WINDOWX0=                  746 / Lower left hand X                              WINDOWY0=                  877 / Lower left hand Y                              WINDOWDX=                  320 / X Window width                                 WINDOWDY=                  320 / Y Window width                                 NFRAMES =                13574 / number of frames included                      GRBLOC  =                    0 / GRB Location 1=XRT 0=MODE CMD                  BPEHWIN =                    0 / BPE hardware window height                     BINX    =                    2 / Binning in the x-axis                          BINY    =                    2 / Binning in the y-axis                          CMPCNTMN=                    F / Compression losses didn't occurred in the imageCMPOTHRS=                 8191 / Overflow of lossy compression algorithm        CMPUTHRS=                -8192 / Underflow of lossy compression algorithm       CTYPE1  = 'RAWX    '           / WCS  axis type                                 CUNIT1  = 'pixel   '           / WCS axis unit                                  CRVAL1  =                746.5 / WCS reference value                            CDELT1  =                    2 / WCS coordinate increment                       CRPIX1  =                   1. / WCS Reference point                            CTYPE2  = 'RAWY    '           / WCS  axis type                                 CUNIT2  = 'pixel   '           / WCS axis unit                                  CRVAL2  =                877.5 / WCS reference value                            CDELT2  =                    2 / WCS coordinate increment                       CRPIX2  =                   1. / WCS Reference point                            UTCCTIME=            -27.43896 / [s] UTC Correction time                        UTCCSEC =                  -28 / UTC Correction Seconds                         UTCCSUBS=                28052 / [2*10**(-5) s] UTC Correction SubSeconds       PKTTIME =      649020275.29546 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5      PKTSEC  =            649020275 / ccsds PacKeT SEConds                           PKTSUBS =                14773 / [2*10**(-5) s] ccsds PacKeT SUBSeconds         APID    =                  843 / Application Process Identifier                 BLANK   =          -2147483648 / Data null value                                CHECKSUM= 'F2qDG2oAF2oAF2oA'   / HDU checksum updated 2021-07-26T19:26:35       DATASUM = '608351  '           / data unit checksum updated 2021-07-26T19:26:35 END                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
! #
!%%%$#  !!"( 
"	!! "%!&" " % ' $
 "#
   !( !$$"% !""# #
 %# !&!
!)"* ""!"!!#
"   
&!"!
!
#
  !$"" &"$!%"!
$!"$"!""%!
"
%%"

% #"

'!&! ! "!  !%!"  #"! $!#!""  !!!#$   !!$%!
#
 "# ' &&#

  !  &$#

$
"$  ! !! "(" ##'"
!""!      % '
! !")&#! #!$"#!%
"
  )# "#% #! """  !!

" "%(!
#$ )

#   
! "     ! !"# # "!#  !&!
%" %!%%" # 

!!# !
! ! " !# !$


" "!" %  #
!!( $"#
!	"$!$ ("! !!#
 !$!
$!!"#!
 %!$ 


$"!#

!
!$ "  "!   !! 
$ 
! &# 
  !   $! !! " % ""$ "$)

! 
$  !
$!!"#$!!  *) "%"$!$" !"! "!$
 !"% !'$#!"
%""##

 !"  
&!  

!	
#!""" #
 "&!" !#$!  #!%  !#   !#
"#%!$ !#$#!  "
!
  "!!$" "!  #
* #!$!
! !"#"
"%!$
%
 %  
#
  
   !	$ !$!!#&!

 "! !#$ !!# 

$
%   $% $  ! # " *!
! #  " #%!$%  %"
"%
  &!
 
  !$ 
! #
 !#!!! #$ !
'!#
!!& !!!$!" !%"  "
" !#! $"$  # * $ !# " !$$  !
!# "!
 
!'%!" " # $"!%'" $"  #'!  $  '
$"
! $&#  

"""#
"%   & %$ "
$  
  !""! #"! 
! 	 !"!" ## "#!#!"& 
 "!#%%!!!$  %## !        !! %
  !!!# ! -$#" (#!!"#
 
  #$
$ " 
!   !
"# ""

 #
" % 
! !!

 %#% !" % ! '!
  !%  ##"!" !!%  ""
"$#+#""$   !# " "

%
( "     $! 
$! """$
 #

   $
%""" #$  #$!!  )!
!$!""
!$   "'    !" " #   "!# $!*& !!"(* " %#'
"      *89  "!
  !&1$"  ! 
 !!"$"'!+!/-%""!! !" !#(EVK5& 
##  #&+\VL6 
 "#!"#5ZQ>#!!!&
  !""'!!=L2"!!! # ##!!% !"
#"'"

 !& 
"
"" $"(# # $% !!  !"+  #  "  &# $'
"!# 
 
  &!	

! 
" !!!"" 
    !! ' ! 
& #!### $"  !""

!   !"$ %"!  $#$"# ! #
&#!
!% &  !! &"
   ""(%#" "!! !!!  ""$!!!!# !! ""! %!$! !#* 
&"(  '$ !!"
% & 
"!"  !$!
     


$!!#"! !  (%!  ""#$(!$!!##  "% # #!$
#
)  %!" # # !!	"  #
!"$!"# "$""
!! & #$!!  * #" !"'%"
#" "%#

%'$$!"%!""
!&'"  """# ! #$##  !"     "

 #% !#
' )! "   "(#!
  #"
""%!"   #     
 
! %!%!####!!
  $#! #"""  "! )# 
""!%
"!!# ! & !"! #   '!"$#!"  $!  !" %! !! !	  #! 
!"!!  
 $ $! !# !#! ""!! $"(!%&#
)"""  " ! !!# ""$

!$" !"!
"!! $
$!#%
& #($"
 " %%"%"   -
#$# %  !$!##" "#"# !!  

 %#"$!  #"$
 !#$ 	" #  ""$ !!" $" $##%!
 
"## 
% #$!  ""##!" #   
## #!"!"$#!$  $ $  $! "" &!! !$#"#$"!
!%! %"$   # #
#%!