2021 Sep 23 2000 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 3 Group Index : 1 Ratio of magnetic polarity (+/-) : 0.169811 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 0 Z-Class : B [ p-Class Determination ] p-Class : x [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.0100000 Number of spots with penumbra : 0 c-Class :o McIntosh Class : Bxo [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 2 Ratio of magnetic polarity (+/-) : 0.669421 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 2.06944 [ Z-Class Determination ] Number of spots : 7 Number of spots with penumbra : 3 Longitudinal extent of this spot group (deg) : 5.63012 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 27.1026 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.85897021 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.156863 p-Class : s [ c-Class Determination ] Number of spots : 7 Area ratio (spots/group) : 0.151475 Number of spots with penumbra : 3 c-Class :o McIntosh Class : Dso [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma Group Index : 3 Ratio of magnetic polarity (+/-) : 0.188369 [ Z-Class Determination ] Number of spots : 3 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 41.0850 (criterion : 25) N-S diameter of largest penumbra (deg) : 3.1598826 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.125000 p-Class : k [ c-Class Determination ] Number of spots : 3 Area ratio (spots/group) : 0.591772 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Cki [ Magnetic Class Determination ] Magnetic Class : Alpha