2021-01-13 02:51:06UT (2021-01-13 11:51:06JST)  Solar Science Observatory NAOJ

P= -3.87, B0=-4.36, L0=120.50, radius=976.4"
obs radius= 976.4 (pixel), p_thresh=-0.080, u_thresh=-0.290

     ***** Observed Sunspot Parameters *****
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               no sunspot


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dark:pcg20210113_115235_00 flat:pcg20210113_115334_01