2021 Sep 02 1900 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 2 Group Index : 1 Ratio of magnetic polarity (+/-) : 0.816568 More than one magnetic neutral line is found Number of Significant Neutral Lines : 2 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 0 Z-Class : A [ p-Class Determination ] p-Class : x [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Axx [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma Group Index : 2 Ratio of magnetic polarity (+/-) : 1.67969 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.65217 [ Z-Class Determination ] Number of spots : 3 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 25.3270 (criterion : 25) N-S diameter of largest penumbra (deg) : 1.9021610 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.142857 p-Class : a [ c-Class Determination ] Number of spots : 3 Area ratio (spots/group) : 0.539106 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Cai [ Magnetic Class Determination ] Magnetic Class : Beta