2017-12-26 00:00:08UT (2017-12-26 09:00:08JST)  Solar Science Observatory NAOJ

P= +4.98, B0=-2.28, L0= 64.99, radius=976.5"
obs radius= 974.1 (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    N17.37 W18.66,   0.892,     42.27,     23.70,       7.08
       2: pu   N17.34 W22.92,   0.867,     78.83,     45.48,      13.26
       3: u  2 N17.10 W23.25,   0.866,      2.35,      1.36,       0.75
     --------------------------------------------------------------------


dark:pcg20171226_090731_00 flat:pcg20171226_090823_01