2015 Aug 21 1800 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 2 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 201508211800 1 14.4 16.2 2 1 3.1 0.49 0.44 0.18 1.31 53.44 1 1.26 Cai Beta 201508211800 2 -14.1 28.6 10 3 12.8 4.01 0.44 0.15 0.47 62.34 2 -99.00 Ekc Beta-Gamma-Delta