2017 May 20 0000 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 201705200000 1 - 7.7 24.5 2 1 1.6 0.61 0.57 0.27 4.50 35.82 1 1.34 Csi Beta 201705200000 2 10.9 27.8 1 1 0.6 0.63 -99.00 0.23 0.00 35.76 0 -99.00 Hsx Alpha