2024 Apr 18 2000 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 11 Group Index : 1 Ratio of magnetic polarity (+/-) : 100.000 [ 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 (+/-) : 100.000 [ 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 (+/-) : 0.162679 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 2 Longitudinal extent of this spot group (deg) : 1.27557 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 57.4119 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.3923891 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.162791 p-Class : a [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.750000 Number of spots with penumbra : 2 c-Class :i McIntosh Class : Dai [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 4 Ratio of magnetic polarity (+/-) : 14.1667 [ Z-Class Determination ] Number of spots : 4 Number of spots with penumbra : 2 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 53.2906 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.39362126 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.166667 p-Class : a [ c-Class Determination ] Number of spots : 4 Area ratio (spots/group) : 0.126263 Number of spots with penumbra : 2 c-Class :o McIntosh Class : Cao [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 5 Ratio of magnetic polarity (+/-) : 0.00000 [ 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 : 6 Ratio of magnetic polarity (+/-) : 0.228261 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 : 2 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 42.4756 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.74809677 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0444444 p-Class : s [ c-Class Determination ] Number of spots : 4 Area ratio (spots/group) : 0.210843 Number of spots with penumbra : 2 c-Class :o McIntosh Class : Cso [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma Group Index : 7 Ratio of magnetic polarity (+/-) : 0.720456 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 2.30769 [ Z-Class Determination ] Number of spots : 8 Number of spots with penumbra : 3 Longitudinal extent of this spot group (deg) : 11.4237 Z-Class : E [ p-Class Determination ] Asymmetry factor of penumbral shape : 33.6759 (criterion : 25) N-S diameter of largest penumbra (deg) : 2.1554645 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.119205 p-Class : a [ c-Class Determination ] Number of spots : 8 Area ratio (spots/group) : 0.286182 Number of spots with penumbra : 3 c-Class :o McIntosh Class : Eao [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma Group Index : 8 Ratio of magnetic polarity (+/-) : 1.14577 More than one magnetic neutral line is found Number of Significant Neutral Lines : 2 [ Z-Class Determination ] Number of spots : 18 Number of spots with penumbra : 7 Longitudinal extent of this spot group (deg) : 21.7660 Z-Class : F [ p-Class Determination ] Asymmetry factor of penumbral shape : 46.8267 (criterion : 25) N-S diameter of largest penumbra (deg) : 2.9407799 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.134731 p-Class : k [ c-Class Determination ] Number of spots : 18 Area ratio (spots/group) : 0.189131 Number of spots with penumbra : 7 c-Class :o McIntosh Class : Fko [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma-Delta Group Index : 9 Ratio of magnetic polarity (+/-) : 100.000 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 0 Z-Class : B [ p-Class Determination ] p-Class : x [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.0100000 Number of spots with penumbra : 0 c-Class :o McIntosh Class : Bxo [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 10 Ratio of magnetic polarity (+/-) : 1.94186 More than one magnetic neutral line is found Number of Significant Neutral Lines : 2 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 2 Longitudinal extent of this spot group (deg) : 3.82633 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 24.5470 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.4426333 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.134831 p-Class : s [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.507645 Number of spots with penumbra : 2 c-Class :i McIntosh Class : Dsi [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma Group Index : 11 Ratio of magnetic polarity (+/-) : 0.155963 [ 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