2015 Dec 18 2000 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 4 Group Index : 1 Ratio of magnetic polarity (+/-) : 10.8421 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 0 Z-Class : A [ p-Class Determination ] p-Class : x [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Axx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 2 Ratio of magnetic polarity (+/-) : 0.295238 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.26667 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 0 Z-Class : A [ p-Class Determination ] p-Class : x [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Axx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 3 Ratio of magnetic polarity (+/-) : 0.115880 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 14.8755 (criterion : 25) N-S diameter of largest penumbra (deg) : 3.9202248 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.198381 p-Class : h [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.810458 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Chi [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 4 Ratio of magnetic polarity (+/-) : 100.000 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 51.8162 (criterion : 25) N-S diameter of largest penumbra (deg) : 1.6294257 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.115152 p-Class : a [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.788018 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Cai [ Magnetic Class Determination ] Magnetic Class : Alpha