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  = '00894557000'        / Observation ID                                 TARG_ID = '894557  '           / 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  =      575065959.29326 / Start time                                     DATE-OBS= '2019-03-23T20:32:39.3' / Start Date                                  TSTOP   =      575066109.15022 / Stop time                                      DATE-END= '2019-03-23T20:35:09.2' / 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    = '2019-03-23T20:38:27' / file creation date (YYYY-MM-DDThh:mm:ss UT)   UTCFINIT=            -22.61964 / UTCF at TSTART                                 CHECKSUM= 'EgkYHfhVEfhVEfhV'   / HDU checksum updated 2019-03-23T20:38:27       DATASUM = '         0'         / data unit checksum updated 2019-03-23T20:38:27 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  = '00894557000'        / Observation ID                                 TARG_ID = '894557  '           / 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    = '2019-03-23T20:38:27' / file creation date (YYYY-MM-DDThh:mm:ss UT)   UTCFINIT=            -22.61964 / UTCF at TSTART                                 TSTART  =      575065959.29326 / Start time                                     DATE-OBS= '2019-03-23T20:32:39.3' / Start Date                                  TSTOP   =      575066109.15022 / Stop time                                      DATE-END= '2019-03-23T20:35:09.2' / 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 = 'wh575065959I'       / Extension name                                 HDUCLASS= 'OGIP    '           / Format conforms to OGIP standards              HDUCLAS1= 'IMAGE   '           / Image data                                     HDUCLAS2= 'TOTAL   '           / Total data values                              DATAMODE= 'IMAGEEVENT'         / Instrument operating mode                      EXPID   =            575065959 / uvot EXPosure ID                               FILTER  = 'WHITE   '           / FILTER used in exposure                        DETNAM  = '2000    '           / WHEELPOS                                       RA_PNT  =     40.1745228242721 / [deg] Ra Pointing                              DEC_PNT =      61.257607162387 / [deg] Dec Pointing                             PA_PNT  =             221.5914 / [deg] Position angle (roll)                    WINDOWX0=                  901 / Lower left hand X                              WINDOWY0=                  793 / 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  =                901.5 / WCS reference value                            CDELT1  =                    2 / WCS coordinate increment                       CRPIX1  =                   1. / WCS Reference point                            CTYPE2  = 'RAWY    '           / WCS  axis type                                 CUNIT2  = 'pixel   '           / WCS axis unit                                  CRVAL2  =                793.5 / WCS reference value                            CDELT2  =                    2 / WCS coordinate increment                       CRPIX2  =                   1. / WCS Reference point                            UTCCTIME=            -22.61964 / [s] UTC Correction time                        UTCCSEC =                  -23 / UTC Correction Seconds                         UTCCSUBS=                19018 / [2*10**(-5) s] UTC Correction SubSeconds       PKTTIME =      575066220.69546 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5      PKTSEC  =            575066220 / ccsds PacKeT SEConds                           PKTSUBS =                34773 / [2*10**(-5) s] ccsds PacKeT SUBSeconds         APID    =                  843 / Application Process Identifier                 BLANK   =          -2147483648 / Data null value                                CHECKSUM= 'D4A6E404D474D474'   / HDU checksum updated 2019-03-23T20:38:27       DATASUM = '683369  '           / data unit checksum updated 2019-03-23T20:38:27 END                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             !
%  "&1"

	
" !#
!!!#!	

"
 
!
 &!"'		
( $  %   !"
!!!! 
!"(  ## "!!!
+!$
2,/'$%*"!! ! 

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

" &!""
"$""!  &%
#"!""" "!"&% !& &!
## !%$"'"!#-470!$ 
! 
'%5OA  !% '! !#$ 
" #8G4"
 #! 


#  ,0!$!!!!
%!  !  #( !!!$ !#!"# ! $  !!
!%!!!!

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


$""& #!!  !!  !* $!! $&
   0$& #$ #  %#$&")! #%%!! "## !$ #	!#!% !!- $!*" 
) (%$ ##%" "# "!%"*'(-""#"" "$!$ $!!!#$$ " ("$"&$'.!*"$#!!"'((&!$!(! #
(
#$$&(&( #("%% "$(% "$( & "!)!"#$#"$"!"# "
 !!""" %%$##$)$))!+*$!&%"!# &"
#!$
! )% !!'''#%($-%'!*&!#" ' "!  #

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

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

-%%"."" &'&$ ()  "!%!
"'#' $#
"#$ $$!! &%" &$ # !)$&'		
$ $")""$#&##"! ! !! # #''	/4	!%+("'!!$ 

& $#! 1)" ,&=��rC
%&.+'&  ($$  "!#

 !!  5!)
$v
��h 	$$ !%()#&#!!&!   !+"!0	P
�
n�r	!%0 !+ 
 $
 #&"!'% F
W
�B "2"* '%!  (%
  !   (!"&#"
	m
}
%t2 ((-(%#- !!" +$!'0+$ .

9
�?%6$(0)$+/2 /  #
$""!%," 	
	
'


5+&"###'
" %$&( ,($"#%#7  '*%"! 
$"$" " #,


#9


#-( ,"&3#"'"  !## "$"$'+("'4

A��%3
&*(-0"'#"!"5/%   #& # %$+)!$+0	
i��
IW
)))$*6*$('%
 '"	 # (#,!8
D0��
	#  ,3"-%($
%
 !*!  !+*()#6
	���
&

	
/'7-,/!
&# ## %!"" #+.- -

�	*�w
"�$	
	
%&'03'/+"  %(# '% 
!! "%!!!5	
\�
�
�
N	
2$.$'&
#
  !"&##    #)$1 


-4

{�	
	
	8-!07" !#"  ##(+,-

"
n(>b_

(-$(%! !
!"  +%& ,2.!6
"z��L(g%-  !" #$  $"'"!-#$-/* &; 

�
1*$37'!-#)$
##!#
$$'($,








0$ -0'%!+$!!$&%#-'"+




/.&,!%#' !'  $!"% & "&# 3'"0			
	"")$!'#$!&$! # "+- !#"($.-(!

	

&1"(#,( % '% !!'!! ! ', *$%)	
		
%$$%&&2&" $$
')
!%%$#%(!%", )#+###!$ 
%%)$#"
&$ )'#6$%/*-%*(.'%#%! 3$)&$;!"# !
!!* #4"/!41!)6,/). 808"&.1)!(490(<;$%% (  	$"!! %

"! "%'#$"!'&#! #!$+(,('#(&" !%$("%#/!"'!$%%"##$&*(  *'  "$ "$""" &-.%)%!#)-& 12$+!$* &)" #&

	

	'! (!#(!.,("),+0$*+4.+1,+,#$')  #  
 "!"##')##$!),#&$###"  !$"# "%-<*&$" ' # #%$*$" " !!")")]���.!
!$!)")!#!#'!$((!',* ! %
  (
H��
�f'! &"	#"! /(,+!%*%" %%&(# +""!+]
�5�2!$!"!"%!! $"" !" H�
��
�R"' '!!
 "%!
! "!! "# 1\�
�/%!"$!"   " #" (  !
$/;B#%" "     " $$'#   &

!
"""!$"',%" "$! !&! !6$&" !!!$"& %$% '
#! &""#
)* !)$ !&%##"!#%% " "-!!%$!""#-!

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

!! (%*%%!& $! !  & %&"  ! $" "!&!! #!!!  #*"+&!)**95%$' #
 "
&!$  "$62$()#,$
! "%7!  #$$##   "!%&! %
! $", $!$#"#
",!$$ " #!$#$ !"""! $ # $# 
!
"!%&!*(!,.(& &$(##! $%!" '&*!!.@^<)'$  !!%!#$ " $)0)###
"#$#" %! )"4W�Y? $ "!"  % #'!!$ 
!#!%$&!'"!# =T:1'!"#'"!($!$!!  !%!(*.(( " # #$ &
#"! #!*+#&"(' /#!$$"#! % !%#!# ##!"  #"(+ ("%  &'% #&!!)!!+%!+#!) #&$ # !  !##!#"%#"!!'#!!!#!$!%)   !!!  #!!# !!$$$$"      "* %/& $ #  "% "!!&"% !$!""  %"!"$ ' $"    #E?(%" %' ! $  ""  !"$-  >aI&!!$3C,% !"#%#$!$""""" !!!18A.[PK!
#
'&## !#*%&"
!'$"',%/G[:!&!&! "#!$$"'##!"!!!(  %!!" "!! !$4) $!%   & !')!'( %  "" ##! %!$.!*!,#"$% % !"     %!"',+.& " " $* !"# #!

 
!""" + "$481)!$" ! !%" !#"
$ " "#
#*0/#!!'&*!%#$ 
#
#  
$  %""#!#!!#$&%") ##!"+#" !!"$$"%# % ## ! "# #!#!!'$ "!!! "2(("!% $ #"&$!% !&!#%!'!"" ##,#&'!,!(!!!,6!(%!!* "*("$  $,&!##&' " #"&! "!&"' "" ! #%" !!%"
'"! % "-"  "$!!)&# "  & $#"/!"+#!
 %! &$ )! #*  &#&#H��a/ "" "#" ! # %(%" $"""##!#',�
D
m�R!(#$""!#  $ #  " "$!""%$&," "$7�
`
n�b++ !
 

(*$&#& "   ##$"!#" !' $$*g
$��3!   """$##"" % $"%&!!'%$Fr�M;( "
$ "'#"#"# %" !!  "<+'!" # "
"! ' - !$&%&# (!&!"$  "!!$&""!""$%$  ((&!!&$)& **# % " $"! #"&%$ +)($!%!  ! $  # "%*#! )%$"$+!%	
	 !&&! !((#'$' ! %!""& 

$&!&%! #"!#-" "%!$#"'! $0,!'(("


  #&'#"# ! #!% """"%""%!.,!&\lZG.+ $#$!-!" !',!#)$ -!%"$!!

	$W�
�T."  '##!!  #%"!$(    &+ $6!$%  " #'%'		
 8}
=
v�_%# "!$ #""" 
!!%!! )!% #+($% !&!
 t^K;!5D�
�K$%"##""$!"! !##"# + !%)! &		vz�
~�1

#2l�M<%)"# #* #' " ""*)   !"%!"#!(�O�s
S+
&1'&!"!$#&#  "%
"&$&*##!#'"!%%-#!	$���V�)	%$  %, !!
	' *0-$(#! ""!#


K
7b(
!!&# !&"
$ * ! !	$!#&"+$(*#' #&" 
	
.���:!1%#"%$# $&#!#% +(40