2017-08-28 04:18:00UT (2017-08-28 13:18:00JST)  Solar Science Observatory NAOJ

P=+20.08, B0=+7.12, L0=205.33, radius=949.6"
obs radius= 951.1 (pixel), p_thresh=-0.090, u_thresh=-0.320

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: p    N07.18 W18.91,   0.947,     19.71,     10.41,       3.69
       2: pu   N05.81 W26.44,   0.896,    180.18,    100.49,      48.91
       3: p    N09.45 W17.47,   0.954,     20.06,     10.51,       3.20
       4: u  2 N05.80 W26.41,   0.897,     40.82,     22.76,      21.94
     --------------------------------------------------------------------


dark:pcg20170828_131535_00 flat:pcg20170828_131630_01