2016 Apr 20 0400 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 201604200400 1 5.3 26.7 2 1 0.9 0.62 0.77 0.07 100.00 69.58 0 -99.00 Cai Alpha