2021-02-28 00:13:14UT (2021-02-28 09:13:14JST)  Solar Science Observatory NAOJ

P=-21.30, B0=-7.20, L0=236.23, radius=969.5"
obs radius= 969.1 (pixel), p_thresh=-0.105, u_thresh=-0.365

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: pu   N17.47 W73.40,   0.233,     93.20,    200.27,      13.01
       2: p    N18.66 W72.84,   0.237,      3.39,      7.14,       0.23
       3: pu   N20.19 W67.43,   0.314,     21.69,     34.54,       2.74
       4: u  1 N17.55 W73.36,   0.233,     18.98,     40.73,       5.19
       5: u  3 N20.33 W67.50,   0.312,      2.03,      3.25,       0.48
     --------------------------------------------------------------------


dark:pcg20210228_092119_00 flat:pcg20210228_092225_01