2018 Apr 21 1200 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 201804211200 1 0.2 55.0 4 1 9.0 1.48 0.46 0.13 1.43 35.29 1 1.37 Csi Beta