2026-08-09 04:11:56UT (2026-08-09 13:11:56JST)  Solar Science Observatory NAOJ

P=+13.90, B0=+6.31, L0=272.08, radius=946.1"
obs radius= 937.4 (pixel), p_thresh=-0.090, u_thresh=-0.320

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                       10^-6 disk 10^-6 hemis. -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: p    S19.71 E25.38,   0.808,     13.77,      8.52,       2.08
     --------------------------------------------------------------------


dark:pcg20260809_130628_00 flat:pcg20260809_130831_01