2021 Apr 20 1700 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 4 Group Index : 1 Ratio of magnetic polarity (+/-) : 1.25796 More than one magnetic neutral line is found Number of Significant Neutral Lines : 2 [ Z-Class Determination ] Number of spots : 4 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 36.9093 (criterion : 50) N-S diameter of largest penumbra (deg) : 2.3952734 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.202381 p-Class : s [ c-Class Determination ] Number of spots : 4 Area ratio (spots/group) : 0.385906 Number of spots with penumbra : 1 c-Class :o McIntosh Class : Cso [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma Group Index : 2 Ratio of magnetic polarity (+/-) : 0.320856 More than one magnetic neutral line is found Number of Significant Neutral Lines : 1 Roughness of the longest magnetic neutral line : 2.21622 [ Z-Class Determination ] Number of spots : 3 Number of spots with penumbra : 3 Longitudinal extent of this spot group (deg) : 5.98910 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 39.3043 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.38353429 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.312500 p-Class : s [ c-Class Determination ] Number of spots : 3 Area ratio (spots/group) : 0.224242 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 (+/-) : 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 : 26.6915 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.3193285 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.147059 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 (+/-) : 1.53125 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.14286 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 47.9357 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.3705978 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.130435 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha