2015 Sep 18 1900 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 3 Group Index : 1 Ratio of magnetic polarity (+/-) : 1.25103 More than one magnetic neutral line is found Number of Significant Neutral Lines : 3 [ Z-Class Determination ] Number of spots : 7 Number of spots with penumbra : 4 Longitudinal extent of this spot group (deg) : 13.0764 Z-Class : E [ p-Class Determination ] Asymmetry factor of penumbral shape : 24.7839 (criterion : 25) N-S diameter of largest penumbra (deg) : 2.0556506 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.130653 p-Class : s [ c-Class Determination ] Number of spots : 7 Area ratio (spots/group) : 0.476732 Number of spots with penumbra : 4 c-Class :c McIntosh Class : Esc [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma Group Index : 2 Ratio of magnetic polarity (+/-) : 2.71852 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.11765 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 13.2126 (criterion : 25) N-S diameter of largest penumbra (deg) : 2.7626276 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.200993 p-Class : h [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hhx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 3 Ratio of magnetic polarity (+/-) : 1.16026 More than one magnetic neutral line is found Number of Significant Neutral Lines : 2 [ Z-Class Determination ] Number of spots : 3 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 28.8914 (criterion : 25) N-S diameter of largest penumbra (deg) : 1.0963010 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.105263 p-Class : a [ c-Class Determination ] Number of spots : 3 Area ratio (spots/group) : 0.557940 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Cai [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma