2021-11-20 00:00:04UT (2021-11-20 09:00:04JST)  Solar Science Observatory NAOJ

P=+19.87, B0=+2.26, L0=335.92, radius=971.9"
obs radius= 972.4 (pixel), p_thresh=-0.110, u_thresh=-0.380

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: pu   S17.63 E05.37,   0.936,     41.74,     22.30,      12.85
       2: pu   N15.59 E18.07,   0.926,     48.81,     26.37,      16.60
       3: u  1 S17.62 E05.37,   0.936,      9.43,      5.03,       4.84
       4: u  2 N15.53 E18.07,   0.926,     14.14,      7.64,       8.32
     --------------------------------------------------------------------


dark:pcg20211120_092112_00 flat:pcg20211120_092215_01