2021 Apr 21 2300 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 3 Group Index : 1 Ratio of magnetic polarity (+/-) : 0.00000 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 37.1794 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.38258111 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.153846 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 2 Ratio of magnetic polarity (+/-) : 100.000 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 36.8285 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.1824146 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.192308 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 3 Ratio of magnetic polarity (+/-) : 0.811024 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.43333 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 40.6529 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.0473805 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.281250 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha