2017-12-11 02:21:39UT (2017-12-11 11:21:39JST)  Solar Science Observatory NAOJ

P=+11.87, B0=-0.41, L0=261.30, radius=975.3"
obs radius= 974.0 (pixel), p_thresh=-0.085, u_thresh=-0.305

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: p    S04.08 E41.22,   0.751,      8.05,      5.36,       1.01
     --------------------------------------------------------------------


dark:pcg20171211_111858_00 flat:pcg20171211_111951_01