2017-05-21 00:17:25UT (2017-05-21 09:17:25JST)  Solar Science Observatory NAOJ

P=-19.15, B0=-1.97, L0= 77.23, radius=948.9"
obs radius= 950.1 (pixel), p_thresh=-0.130, u_thresh=-0.410

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t
      No. p/u    position       cos(t)    ap_area    co_area    darkness 
     --------------------------------------------------------------------
       1: p    S09.52 E13.80,   0.963,      2.47,      1.28,       0.47
       2: p    S06.65 E07.38,   0.988,     19.40,      9.81,       5.48
       3: pu   N11.02 E11.83,   0.954,     41.61,     21.82,      13.60
       4: u  3 N11.04 E11.83,   0.953,      9.17,      4.81,       5.32
     --------------------------------------------------------------------


dark:pcg20170521_091504_00 flat:pcg20170521_091559_01