2021-05-01 04:35:35UT (2021-05-01 13:35:35JST)  Solar Science Observatory NAOJ

P=-24.06, B0=-4.15, L0=135.89, radius=953.2"
obs radius= 953.6 (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: p    S15.38 W68.17,   0.377,     11.90,     15.79,       1.00
     --------------------------------------------------------------------


dark:pcg20210501_090338_00 flat:pcg20210501_090438_01