2017 May 28 1800 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 201705281800 1 13.1 -69.8 4 2 12.3 2.85 0.49 0.09 0.69 30.94 2 -99.00 Chi Beta-Gamma