2023-04-04 00:11:38UT (2023-04-04 09:11:38JST)  Solar Science Observatory NAOJ

P=-26.23, B0=-6.40, L0=219.76, radius=959.4"
obs radius= 963.1 (pixel), p_thresh=-0.085, u_thresh=-0.305

     ***** 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    S18.91 W30.75,   0.844,      4.80,      2.85,       0.61     2
       2: pu   S22.67 W20.85,   0.900,    336.62,    187.02,     100.83     4
       3: pu   S24.70 W14.99,   0.919,    302.31,    164.53,      82.70     4
       4: p    S23.48 W19.13,   0.906,      2.40,      1.33,       0.29     4
       5: p    S23.22 W18.71,   0.909,      5.83,      3.21,       0.74     4
       6: p    S24.00 W16.77,   0.915,      6.86,      3.75,       0.91     4
       7: p    S22.62 W19.57,   0.907,      1.37,      0.76,       0.19     4
       8: p    S22.23 W19.61,   0.909,      3.09,      1.70,       0.35     4
       9: p    S23.43 W17.03,   0.916,      1.72,      0.94,       0.20     4
      10: p    S20.77 W21.93,   0.901,      2.40,      1.33,       0.27     4
      11: p    S22.65 W17.65,   0.917,      1.37,      0.75,       0.21     4
      12: pu   S22.00 W16.37,   0.926,     77.89,     42.07,      17.38     4
      13: p    S21.24 W16.45,   0.929,      2.06,      1.11,       0.25     4
      14: p    N15.29 W58.79,   0.467,     12.70,     13.58,       1.49     1
      15: p    N09.32 W27.22,   0.854,      2.40,      1.41,       0.32     3
      16: p    N08.73 W25.05,   0.873,     12.70,      7.27,       2.63     3
      17: u  2 S22.66 W20.86,   0.900,    102.26,     56.82,      51.60     4
      18: u  3 S24.86 W15.08,   0.918,     74.12,     40.39,      37.18     4
      19: u  3 S23.87 W14.54,   0.925,      7.55,      4.08,       3.07     4
      20: u 12 S22.01 W16.01,   0.927,      9.26,      5.00,       3.82     4
     --------------------------------------------------------------------------
    * = False spots


     ***** Observed Group Parameters ***** 
     ---------------------------------------------
      No.   position    Carr.Lon.      f    center
     ---------------------------------------------
       1:  N15.29 W58.79, 278.55,       1,       0
       2:  S18.91 W30.75, 250.51,       1,       0
       3:  N08.97 W25.92, 245.68,       2,       0
       4:  S23.04 W18.01, 237.77,      16,       1
     ---------------------------------------------


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

     North      2           3          23

     South      2          17          37

     Whole      4          20          60

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

     Center     1          16          26


dark:pcg20230404_091347_00 flat:pcg20230404_084956_01