2021-11-19 02:38:43UT (2021-11-19 11:38:43JST)  Solar Science Observatory NAOJ

P=+20.15, B0=+2.36, L0=347.65, radius=971.7"
obs radius= 971.4 (pixel), p_thresh=-0.085, u_thresh=-0.305

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: pu   S17.79 E17.21,   0.896,     66.79,     37.26,      16.98
       2: pu   N15.58 E30.11,   0.844,     62.07,     36.78,      17.76
       3: u  1 S17.81 E17.23,   0.896,     18.21,     10.16,       8.34
       4: u  2 N15.54 E30.11,   0.844,     20.91,     12.39,       9.94
     --------------------------------------------------------------------


dark:pcg20211119_113538_00 flat:pcg20211119_113642_01