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  = '00635289000'        / Observation ID                                 TARG_ID = '635289  '           / 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  =      448355970.10876 / Start time                                     DATE-OBS= '2015-03-18T07:19:30.1' / Start Date                                  TSTOP   =       448356119.9878 / Stop time                                      DATE-END= '2015-03-18T07:21:60.0' / 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    = '2015-03-18T07:27:23' / file creation date (YYYY-MM-DDThh:mm:ss UT)   UTCFINIT=            -13.32492 / UTCF at TSTART                                 CHECKSUM= 'JcoZMZnZJbnZJZnZ'   / HDU checksum updated 2015-03-18T07:27:23       DATASUM = '         0'         / data unit checksum updated 2015-03-18T07:27:23 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  = '00635289000'        / Observation ID                                 TARG_ID = '635289  '           / 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    = '2015-03-18T07:27:23' / file creation date (YYYY-MM-DDThh:mm:ss UT)   UTCFINIT=            -13.32492 / UTCF at TSTART                                 TSTART  =      448355970.10876 / Start time                                     DATE-OBS= '2015-03-18T07:19:30.1' / Start Date                                  TSTOP   =       448356119.9878 / Stop time                                      DATE-END= '2015-03-18T07:21:60.0' / Stop Date                                   TELAPSE =     149.879040002823 / TSTOP - TSTART                                 ONTIME  =     149.879040002823 / Sum of GTIs                                    LIVETIME=     149.879040002823 / Ontime multiplied by DEADC                     EXPOSURE=     149.879040002823 / Total exposure, with all known correction      DEADC   =                   1. / dead time correction                           EXTNAME = 'wh448355970I'       / Extension name                                 HDUCLASS= 'OGIP    '           / Format conforms to OGIP standards              HDUCLAS1= 'IMAGE   '           / Image data                                     HDUCLAS2= 'TOTAL   '           / Total data values                              DATAMODE= 'IMAGEEVENT'         / Instrument operating mode                      EXPID   =            448355970 / uvot EXPosure ID                               FILTER  = 'WHITE   '           / FILTER used in exposure                        DETNAM  = '2000    '           / WHEELPOS                                       RA_PNT  =     324.978623961059 / [deg] Ra Pointing                              DEC_PNT =    -61.4670210087301 / [deg] Dec Pointing                             PA_PNT  =             36.39143 / [deg] Position angle (roll)                    WINDOWX0=                  914 / Lower left hand X                              WINDOWY0=                  841 / Lower left hand Y                              WINDOWDX=                  320 / X Window width                                 WINDOWDY=                  320 / Y Window width                                 NFRAMES =                13576 / 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  =                914.5 / WCS reference value                            CDELT1  =                    2 / WCS coordinate increment                       CRPIX1  =                   1. / WCS Reference point                            CTYPE2  = 'RAWY    '           / WCS  axis type                                 CUNIT2  = 'pixel   '           / WCS axis unit                                  CRVAL2  =                841.5 / WCS reference value                            CDELT2  =                    2 / WCS coordinate increment                       CRPIX2  =                   1. / WCS Reference point                            UTCCTIME=            -13.32492 / [s] UTC Correction time                        UTCCSEC =                  -14 / UTC Correction Seconds                         UTCCSUBS=                33754 / [2*10**(-5) s] UTC Correction SubSeconds       PKTTIME =      448356181.17548 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5      PKTSEC  =            448356181 / ccsds PacKeT SEConds                           PKTSUBS =                 8774 / [2*10**(-5) s] ccsds PacKeT SUBSeconds         APID    =                  843 / Application Process Identifier                 BLANK   =          -2147483648 / Data null value                                CHECKSUM= 'LhPaLfNTLfNYLfNY'   / HDU checksum updated 2015-03-18T07:27:23       DATASUM = '713794  '           / data unit checksum updated 2015-03-18T07:27:23 END                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              ( ,(%""%+!  #'%"$ $!!%%#!#$&"% # "#  ! $$")*#!%  # !(&"$"'! # !"$#*##"# %&"$#!#%! $#"%! "  %&%!!!' '!'  ###(&#" $$!   ")!  "## !!$#!' !$#$ $$#,! !!+!*#"'$ 
%!##" (## $( " #&! "'  $!"" "%%&'"$%"( " "!$ ""!%%" % "$!" !$ "  % (+! #* #&    "!#% ! "  "$$%!#$%!# +$!#!!!"$!$"!&  ",#""&     $#!#!!"
$*#$+#!""'$ # $    ##)(" ## "# "*" #!#""!""$"!!!$ (#) &"+%* "%! ( ##'"!+!$!$"!*" !$%"  &% ##%%+$$ $$ (# $ !!$ &!!'#!(&1## $% #!! #"!#" $##$!## + " #" !""%,#"% " (#
"($ """!$(!" ''$%#$" $!$#% " !( +
  !$ &!&$!####!  ! +!&%% %!"$ # %0!  !#!!"""%$ &$' ) ("
!"$&#& #%#!% *.#($!%%!""
"(#*) %%$# "#!)" !!'  !"$'! ! "" !"  *")%%"$ !$!###&! "'#&  $!%!"" $%*$!% #% ##!#  !!)"!"!!$ )#%  #%"*#"%%"!"!!" $ "#!' "'!%%!*#!$""'"''%'##"#  #%! &$ "!! ! #$$'  $%%$"$ %#%!""!!#"!!"(#("&$$#'$"%%) '!#! (!$#$)% +!#"' $$"!!"#.& "%$#$("$  $!'"
"%!!"!%%  #"! ## !!#  !%
(&" #"#""%% $"! )%%+  #&'!!("#( 
%$"!##""/!!$!! " !)"$ ""''("+&!" "$!%   $$!  '%#! #($%$ ("# &#!#!  "! #%* !""%!#"&("%#%*!  
"(## #+#"%#%"'" -$ !!"%*)"'#%% '#(" #!###  !"""$)"*%  !#%$  !( #"!! ! -*    #$&%"!%# "$! !!#! !# !$!!$!$$!% ""&,#  ""!"! !&!#$ $#&*( $") !'#! #! " % !#!- !&!"$)%# #"!  !$& ! "! "'!!!$$"$! #) #!#"$!#$!#%(#'!!!#!  &*  ! &"(& &  &$!!  #"$!""%" ","'!#'!+! #"# ""!  %%"!"  "&
 !"/""'!&/!/%",'!  # + !$#%""#" !")/#"!##!%$"!#! # &$"(!
!#%"+$ #  ."#%$"#!.  !$"  !!!"*$ #  % #*"#!($#%"( " $"#!"&%"  "$%  ! &! "! &"!!"%+ ""# '!  *!*"#"## $"'"!!%#+%'(  "#$! #  $!!!#"!!("&%( 
!!#""! " !"' %#!$$"""!$%!!$  #"*%*$'#"  !!#)"% #!&"%"%#&+!% &## %  !""$!"!%-$! ("" ""&!&' "#%% '%+"%   ""#
-  !$"#"& #"$%$!&( %!"#"&! "!"&!!!$$#!%"#"%$!% &#! &!#$&$!! $ !!$"!&"' (!&&& % !$%$ #"$)   &&   (!!$!$" '!'$  #%  ""$!!#! $""%"!!'!#"! !#$"%$$#&!""  #!"!$!% '  #$!#!!$!!  ""# ""!&#!   "!!!! # ! "*$*! !*'$"%##% !%!$( #&  '# #("& #& "! ,$,#$ "!)/ $'   #- #  $ # %#%" #!$!!#!!)$
&$
"'% ")' # ""%"""!'%" "&")%%%"$ $!"%"!$!' "%$&) ""%
   #  !##"  *&'!$ ! #!# $#'!  ##  !!'# %# "#!! !""%""$&"$'%!" & &!("!!# !!&*"""$$"!# "%!## $*$"$"! (! &!#!#"$%"$! "##$" -! "!!$ &"!# "$!#'" #&!!# )   "' # #'!! +!  (#   ( $ !#& % *" %# ""(% !$!"&%!!'!   '# !!$'" #!#" !  !'%!+!#))"%%"" &$"$% !)# #("# &(( "$  !'## ##-$ #( !))&"#%$" #%!(#$# #%"'''%!$"!!"%!" "#% %!(!+$!#$"' $!!#$ !" ! ""!!!   $&-%   #!!#  "3*%%%$ $ "$&*!#'(""!"" !"  !"$ !%   $"'%!$ $$(! !%"*" !!# '*$%"%#)$ ! $" "! %# %!!$ ""$" #"!#$%#"# !%' #   &$$%!!! "% $ #)!(&&$ #$% "(*  " $" '"0!  "## )$#(%%!&&$$#%  "&#" !$#""  !"'"" %!&#!% &#!'#%#'# "%)" ##(!$""$! #" """!!!$!%'$% %%#!"!!&!%$( !!#&&"!!$ " #!$"& !!!""(&,$) "!,$!!&!%%"!(! 1 '!"" ' #### ))"* " %#  +'$ ""! $'&$%!!(%#  "!!!# "* !"$ # %( )#,&&" *" "  "#%!'$#" (%$""$# !##!! !!' !!#$" %$ -" "!   !"#""%!#&%(('%  % $& $ !!!$$
!$*. !!&"!!!$""" %!!#"  '%  %'"!!&"  !!("!! #! !!% $$!#!$!    *" $$'%" $!"$$"# %$"" !$&!&!"   & !'! % "#! (#"$   (%!!#$&# # ""# !"$$ #!&   $()$"-$!  # #!!,%#("$! !!# !'&$"  !!"&# "* $"" $ !#"  "!$#$% ##!$(,#"  # ! #  ! ! &#""!#! & #! #!&' ! "#" #!# $$!#%!)$$ "( $!( '" "%$ '' "$''%%!!!"%!"!!("   !)%' +""#!#!&  '!" !($%) $ %%"!#$!#"&"  " !$ %%%# #&#%! ("%'#! " &(*("' $  "*!"'#( !  !" $%#&!#" !!!, $&'!$#! #$ ""#"'' % "$  #$"#'""%$"$'+'$ $"*$"#%&!&!!"%"$!$*" ! "("!$ + $$$!!"%$ $&5!!##" !  '(% #!!! *",% "%%%"#$&!((   #$"))"%&%&("% " #  $% #"  !!'"$ # ##!!"" "!'(% -!! #% * %# % ! &!' !%"'+ %"#!) !"#"!($(!& "! &! $!!!"# # %#!#'%""#! "!#$  % $"($!#"!!"'##!!+  &-  &!!-#!$%% #%#&""!"'!&)!!#(#"&#"##'$# !'
$"'%"! %"!  !  "$!!,!" ! !!$!!$ "+ "" (%$ !$$%# !"! #  !* ,$ (!"1!!#"" &$)""$#)!" )$! $)$#!%"+"#&&#& ""#" '  "'%&$ !#-&# !#   '!!$#& 
"## ! " " ""   &"%$%# "" %'*#  "  + ' "&' $%% &!  $  %("!&+#+' "%""%! +$!%! #  *# $#'' &!!"##%+(%#($ % #"%$$$$$ #  #!)&"! %%$$&!&#"! !(' $ ! !#!*( )!!"% $ $!!"!! #)#"'& (  $'(" &##%!! ###!! $)"##"$"$(""$ #!$ !- #  "" # )%" +!& ' !!# ! $$ "%&#%#%"$$""( $#(   #!)!-!"#" ,!   #)*!("  ))$"!%,! %!!& !""""  !""!%!" !'"!!&!$%"% ( !!!#!&! %)$" !% $% %"!!*""$#&"!"# !&$'"#  "$'"# # "  !"%!"  #" !"!$"&!!&!! "!  "%'#"$$%""$#,$"'% ##&#!%$ ,%
%$"#  !!"& !! #  $"%& + #"% #"'! %"$$"%" &#!! # &%""#%"! &!%' &! " &#-&#$!$%"!!  !!!   !%$"$$"#"$%#$"!'##%,$! " &$$ )!! !!&!#$% "%$ & ""! " # "  ! !- #!%!$" &%%&$ '"$$!'#!& $)!&! !+#%#$'"$#% $# !%%%&#!0%"# """  ")!! !#& $"" $( "! !&'##"# )$ % %$%"". " #"#'#(!#%!  & "# %)&%,%,"!#-)!)! " #" "& "'#%!
# & !! !' "!$($"!"  &# (" &! ", ! "  '+&&#'!%!"&&#&!($ &" !%! " "$%'!!.% !"  #$!#)$   &$$%!" & " !(# !&* $'$&&"
"$ ""# # !  '  " %!$'"##     !%"$!"&"" % ')'% )" $! &"% !"#"!" #  !"' ! & ! # % '!""!3"!$"!"!%'"% "$!#! %"#"!!!3! (&"&,  %$#&!"  "#%)" ! !"! # "!("! ! (&&"&"$#!&&#!  "!"
"%&'&"$ $!&#" ! *"#&!##$"!! %&"!% '!(!!#+ $!('" $$"+#"%&* ! $&"! $#%"$" &!"$" .%'&#!"&&) $ "$&""$# ! & %## &$#($"!(%&!!"#%"!'#$!#! & % "!* " !  !""   &"!!(*!$$/# $& &# #"$* &#$(# %"-$"!!% $!%%##!" "! "%$"#"%*!!! ) ! #""'$$&&   !#%!#"$ !$,&!"#"%!#' # $" ( "%#!&""!!#  !"!"!%&%#!$$('  ""$!$%$!  &! # !%! !(!##!%"# %$!#"%%!!&%"$#"" !"!!*$ "#%!$$!#$$'!!% ) &$!'#!"##&! %!)!  #!#- *"!%!" ) !" &!!'%! !&"$!)'! !"##)""%%+ # #)(%" (!$"#" ""* !# "!#! '$" !!"#&%$-#$&*"#$! !"!  !,+!% #%&+&   "#"%"  '#" $"$ $"#(& %%$#%&!# ** & "!'%# &"!" "'#  '$%'#!%# "! "&* "!!!''%'(*#!"!  $%(#!  !$$!$%!!"$ ""! !# '#-$ "&" ! %!$% & &#$%$"'"#"!") %#$ +*# !! "!%# "$"#!%  #%"%""$  &!""'%,&  '% ##!)&'$*  "$"!#!!$ !$!"#"$$"$ %" "("% ""! "+#! (#&#  !%!  !(#* #"$""%$ $ # 1 $% ##' #"( !*!"!$&*!&% "#!$ #&" !$%!   &#"(  #  !"#! $#  $!'!)$! %!!"$'    &$(   ! ""#!*$%%!&&(*%$"  %%!'%$&  ''"!"# $%! "  
" & $"""  &!+"   ' $%(! )"!#!#$ *!# !!  "!!!# !""#' ! % % "'!# +  ! ')!# $ # (" !%! '"!( ###*"
$#! ("(' )%'"" *(#$" +&"&-$ !!- !!&#$ ""%"$ !! !!%'$#""##'#%0 "#"()3,!'& !.)#"%  ""!$&'&!"" !#%,!""!" %($,*/?!""" & '!# !   !"&'%""""""" #  "&!'$!!& $!-8.)"& !!!' "& +    *%"%+!!" ""#"" !&#! ( %#$ &%)'"  #!!-7'$%$) #""  " "$!,# )!$ %!!$"%"/ "!  !%"'!"  !$48''#*!""$&'%"#!" %#"  !!%$$$!"#%#()#"$! "" # ,%! ! ! ## &!''#!" $!""(   "$'! !)$&"" ' "!)'!!(!$$#!" &!"%! !#"%!"$  ",%()!"&$(! %!"$#!"%$%"  "%- %!!"!$"#-#'&%!%##$!!!&!%!"!!&##!!!%#"%%#"%"))"$!$#  1!&%#)$'"!!*%!  !  ""!!"" '"&# !"!&(!!!!!!.'' #"' !#"!!#!!%#'#!&%#!! #")!!!#!""((!#!%%)!#,!&"&' !!!%'%!%! $ "+!# %%+"  "#$$"&"(#$ & %$!! "# " "!!!) %!"## " . !!!#!!&!%  "&%!#*(!%* ! " %#!#&"$%$"##%""$"#"&!$!&$  %!-'!!" &! &!#%!%$&!" (!#!&!$"#%!(#"' ")"("!&%$$$ " -!& #"## % "#%"!"$!
    ( !#(*!#$"!!%!#!! (# "!!&" +!%#!#!&'"/"%!!" $ $   " $"$  %! !(# /[M3% #)"! ' ! ! ! !$!!%$ "%'%&!"*$#(! "$!%&4���4'!!#"! $!  (  )&%$#"%$!%"