2015 Sep 02 2000 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 1 Group Index : 1 Ratio of magnetic polarity (+/-) : 1.06977 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.32432 [ Z-Class Determination ] Number of spots : 4 Number of spots with penumbra : 2 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 65.7701 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.48767537 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.111111 p-Class : a [ c-Class Determination ] Number of spots : 4 Area ratio (spots/group) : 0.146552 Number of spots with penumbra : 2 c-Class :o McIntosh Class : Cao [ Magnetic Class Determination ] Magnetic Class : Beta