2021-01-18 00:19:59UT (2021-01-18 09:19:59JST)  Solar Science Observatory NAOJ

P= -6.15, B0=-4.85, L0= 56.04, radius=976.1"
obs radius= 976.5 (pixel), p_thresh=-0.080, u_thresh=-0.290

     ***** 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    S17.46 E75.47,   0.264,     50.41,     95.53,       4.41     1
     --------------------------------------------------------------------------
    * = False spots
     ----------------------------------------
                10^-6 hemisphere  -10^-6 B_t
     Region     ap_area  co_area  darkness 
 
     North        0.00     0.00      0.00
 
     South       50.41    95.53      4.41
 
     Whole       50.41    95.53      4.41
 
     ----------------------------------------


     ***** Observed Group Parameters ***** 
     ---------------------------------------------------------------------
      No.   position    Carr.Lon.      f    center cos(t) ap_area  co_area
     ---------------------------------------------------------------------
       1: S17.46 E75.47, 340.57,       1,       0, 0.264,   50.41,   95.53
     ---------------------------------------------------------------------


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

     North      0           0           0

     South      1           1          11

     Whole      1           1          11

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

     Center     0           0           0


dark:pcg20210118_091610_00 flat:pcg20210118_091711_01