2015 Dec 18 2100 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 4 Group Index : 1 Ratio of magnetic polarity (+/-) : 15.7692 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 40.0416 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.37497309 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0769231 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 2 Ratio of magnetic polarity (+/-) : 0.255319 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.25000 [ 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 (+/-) : 0.0913556 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 13.9693 (criterion : 25) N-S diameter of largest penumbra (deg) : 3.9201773 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.196501 p-Class : h [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.820088 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 (+/-) : 138.800 [ Z-Class Determination ] Number of spots : 3 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 46.2988 (criterion : 25) N-S diameter of largest penumbra (deg) : 1.7551541 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.118644 p-Class : a [ c-Class Determination ] Number of spots : 3 Area ratio (spots/group) : 0.639175 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Cai [ Magnetic Class Determination ] Magnetic Class : Alpha