2021-05-15 02:57:47UT (2021-05-15 11:57:47JST)  Solar Science Observatory NAOJ

P=-20.87, B0=-2.66, L0=311.69, radius=950.1"
obs radius= 950.9 (pixel), p_thresh=-0.110, u_thresh=-0.380

     ***** Observed Sunspot Parameters *****
     --------------------------------------------------------------------------
                                          10^-6 hemisphere     -10^-6 B_t Group
      No. p/u    position       cos(t)    ap_area    co_area    darkness    id
     --------------------------------------------------------------------------
       1: p    S22.88 W14.43,   0.909,      9.15,      5.03,       1.96     3
       2: p    N19.77 W43.14,   0.670,      3.87,      2.89,       0.54     1
       3: pu   N18.48 W23.73,   0.853,    135.17,     79.27,      33.71     2
       4: p    N17.93 W22.61,   0.863,      3.87,      2.24,       0.52     2
       5: u  3 N18.39 W24.10,   0.851,      5.98,      3.52,       2.70     2
       6: u  3 N18.49 W23.45,   0.854,     16.54,      9.68,       8.09     2
     --------------------------------------------------------------------------
    * = False spots
     ----------------------------------------
                10^-6 hemisphere  -10^-6 B_t
     Region     ap_area  co_area  darkness 
 
     North      142.92    84.40     34.77
 
     South        9.15     5.03      1.96
 
     Whole      152.07    89.44     36.73
 
     ----------------------------------------


     ***** Observed Group Parameters ***** 
     ---------------------------------------------------------------------
      No.   position    Carr.Lon.      f    center cos(t) ap_area  co_area
     ---------------------------------------------------------------------
       1: N19.77 W43.14, 354.82,       1,       0, 0.670,    3.87,    2.89
       2: N18.31 W23.48, 335.17,       4,       0, 0.855,  139.04,   81.52
       3: S22.88 W14.43, 326.12,       1,       1, 0.909,    9.15,    5.03
     ---------------------------------------------------------------------


     *****   Relative Sunspot Numbers   ***** 
     ------------------------------------------
     Region     g           f         10*g + f 
     ------------------------------------------

     North      2           5          25

     South      1           1          11

     Whole      3           6          36

     ------------------------------------------

     Center     1           1          11


dark:pcg20210515_115338_00 flat:pcg20210515_115437_01