2017 May 28 2100 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 1 Date G_Ind Lat Lon Num_Spot Num_Spot_Pen Lon_Ext N-S Ratio_Area Ratio_Um Ratio_Pol Assym Num_Neutral Rough Zpc Wilson 201705282100 1 13.1 -71.5 4 2 12.6 2.96 0.47 0.09 0.74 44.49 2 -99.00 Chi Beta-Gamma