2017 Apr 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 201704211800 1 10.7 36.0 2 2 4.4 1.93 0.69 0.12 0.26 20.86 2 -99.00 Dsi Beta-Gamma 201704211800 2 -13.4 77.9 1 1 3.6 1.94 -99.00 0.12 0.34 47.56 1 1.12 Hsx Alpha