2021-03-22 00:25:47UT (2021-03-22 09:25:47JST)  Solar Science Observatory NAOJ

P=-25.38, B0=-6.98, L0=306.20, radius=963.9"
obs radius= 965.0 (pixel), p_thresh=-0.075, u_thresh=-0.275

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: p    N20.01 E58.17,   0.450,     10.26,     11.39,       0.88
     --------------------------------------------------------------------


dark:pcg20210319_083620_00 flat:pcg20210319_083722_01