2018-01-31 00:23:06UT (2018-01-31 09:23:06JST)  Solar Science Observatory NAOJ

P=-11.73, B0=-5.94, L0=310.72, radius=974.8"
obs radius= 973.7 (pixel), p_thresh=-0.095, u_thresh=-0.335

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: p    S09.41 E47.49,   0.680,      4.03,      2.96,       0.55
       2: p    S08.41 E46.30,   0.695,      6.38,      4.59,       1.06
       3: p    S08.22 E48.74,   0.664,      4.03,      3.03,       0.45
     --------------------------------------------------------------------


dark:pcg20180131_093833_00 flat:pcg20180131_093925_01