2021 Sep 28 1900 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 4 Group Index : 1 Ratio of magnetic polarity (+/-) : 0.168750 [ 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 : Alpha Group Index : 2 Ratio of magnetic polarity (+/-) : 0.755102 More than one magnetic neutral line is found Number of Significant Neutral Lines : 1 Roughness of the longest magnetic neutral line : 1.57895 [ Z-Class Determination ] Number of spots : 4 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 75.7262 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.40231212 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0869565 p-Class : a [ c-Class Determination ] Number of spots : 4 Area ratio (spots/group) : 0.217391 Number of spots with penumbra : 1 c-Class :o McIntosh Class : Cao [ Magnetic Class Determination ] Magnetic Class : Beta Group Index : 3 Ratio of magnetic polarity (+/-) : 0.285714 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.23077 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 47.6516 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.24518654 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.222222 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 4 Ratio of magnetic polarity (+/-) : 0.227273 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.42857 [ Z-Class Determination ] Number of spots : 3 Number of spots with penumbra : 2 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 89.9734 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.79932324 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.200000 p-Class : a [ c-Class Determination ] Number of spots : 3 Area ratio (spots/group) : 0.238095 Number of spots with penumbra : 2 c-Class :o McIntosh Class : Cao [ Magnetic Class Determination ] Magnetic Class : Beta