2015 Aug 21 2200 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 2 Group Index : 1 Ratio of magnetic polarity (+/-) : 1.34454 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.54839 [ Z-Class Determination ] Number of spots : 3 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 70.1461 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.49293167 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0555556 p-Class : a [ c-Class Determination ] Number of spots : 3 Area ratio (spots/group) : 0.451613 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Cai [ Magnetic Class Determination ] Magnetic Class : Beta Group Index : 2 Ratio of magnetic polarity (+/-) : 0.491828 More than one magnetic neutral line is found Number of Significant Neutral Lines : 1 Roughness of the longest magnetic neutral line : 9.65385 [ Z-Class Determination ] Number of spots : 8 Number of spots with penumbra : 4 Longitudinal extent of this spot group (deg) : 13.3386 Z-Class : E [ p-Class Determination ] Asymmetry factor of penumbral shape : 60.7712 (criterion : 25) N-S diameter of largest penumbra (deg) : 4.5260164 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.137380 p-Class : k [ c-Class Determination ] Number of spots : 8 Area ratio (spots/group) : 0.438677 Number of spots with penumbra : 4 c-Class :c McIntosh Class : Ekc [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma