2018-05-21 06:39:53UT (2018-05-21 15:39:53JST)  Solar Science Observatory NAOJ

P=-19.14, B0=-1.97, L0=296.17, radius=948.9"
obs radius= 950.5 (pixel), p_thresh=-0.075, u_thresh=-0.275

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


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dark:pcg20180521_083319_00 flat:pcg20180521_083414_01