2020-08-20 00:06:20UT (2020-08-20 09:06:20JST)  Solar Science Observatory NAOJ

P=+17.75, B0=+6.87, L0=247.44, radius=949.2"
obs radius= 949.9 (pixel), p_thresh=-0.105, u_thresh=-0.365

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: pu   N17.38 W46.66,   0.686,     21.52,     15.69,       4.56
       2: pu   N17.77 W49.18,   0.655,      9.52,      7.28,       2.35
       3: u  1 N17.19 W46.59,   0.687,      1.41,      1.03,       0.50
       4: u  2 N17.85 W49.19,   0.654,      2.47,      1.89,       0.87
     --------------------------------------------------------------------


dark:pcg20200820_090037_00 flat:pcg20200820_090326_01