2019-02-13 04:15:55UT (2019-02-13 13:15:55JST)  Solar Science Observatory NAOJ

P=-16.65, B0=-6.73, L0=359.85, radius=972.8"
obs radius= 973.6 (pixel), p_thresh=-0.060, u_thresh=-0.230

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: p    S16.12 W52.82,   0.609,      8.39,      6.89,       0.60
     --------------------------------------------------------------------


dark:pcg20190212_085504_00 flat:pcg20190212_085557_01