2021 Apr 19 1900 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 2 Group Index : 1 Ratio of magnetic polarity (+/-) : 2.02717 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 2.17073 [ Z-Class Determination ] Number of spots : 8 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 116.515 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.72107486 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.100000 p-Class : a [ c-Class Determination ] Number of spots : 8 Area ratio (spots/group) : 0.0937500 Number of spots with penumbra : 1 c-Class :o McIntosh Class : Cao [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma Group Index : 2 Ratio of magnetic polarity (+/-) : 1.31696 More than one magnetic neutral line is found Number of Significant Neutral Lines : 1 Roughness of the longest magnetic neutral line : 2.78182 [ Z-Class Determination ] Number of spots : 5 Number of spots with penumbra : 3 Longitudinal extent of this spot group (deg) : 7.99949 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 23.0196 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.6023111 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.108108 p-Class : s [ c-Class Determination ] Number of spots : 5 Area ratio (spots/group) : 0.456026 Number of spots with penumbra : 3 c-Class :c McIntosh Class : Dsc [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma