2018-01-06 00:20:23UT (2018-01-06 09:20:23JST)  Solar Science Observatory NAOJ

P= -0.34, B0=-3.57, L0=279.92, radius=976.7"
obs radius= 977.0 (pixel), p_thresh=-0.100, u_thresh=-0.350

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: p    N20.30 W49.88,   0.582,      5.67,      4.87,       0.84
     --------------------------------------------------------------------


dark:pcg20180106_092644_00 flat:pcg20180106_092737_01