2025 Jul 31 1600 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 11 Group Index : 1 Ratio of magnetic polarity (+/-) : 0.163889 [ Z-Class Determination ] Number of spots : 5 Number of spots with penumbra : 0 Z-Class : B [ p-Class Determination ] p-Class : x [ c-Class Determination ] Number of spots : 5 Area ratio (spots/group) : 0.253394 Number of spots with penumbra : 0 c-Class :o McIntosh Class : Bxo [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 2 Ratio of magnetic polarity (+/-) : 3.42105 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.37500 [ 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 (+/-) : 0.235294 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.37500 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 21.6132 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.6219499 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0989011 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 4 Ratio of magnetic polarity (+/-) : 0.00000 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 46.7191 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.63779371 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0500000 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 5 Ratio of magnetic polarity (+/-) : 0.133333 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 30.9757 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.1343452 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.142857 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 6 Ratio of magnetic polarity (+/-) : 1.51235 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.34375 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 41.8036 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.1947759 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.166667 p-Class : s [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.509615 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Csi [ Magnetic Class Determination ] Magnetic Class : Beta Group Index : 7 Ratio of magnetic polarity (+/-) : 1.16000 More than one magnetic neutral line is found Number of Significant Neutral Lines : 1 Roughness of the longest magnetic neutral line : 1.92683 [ Z-Class Determination ] Number of spots : 6 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 46.5823 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.61568446 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0476190 p-Class : s [ c-Class Determination ] Number of spots : 6 Area ratio (spots/group) : 0.210667 Number of spots with penumbra : 1 c-Class :o McIntosh Class : Cso [ Magnetic Class Determination ] Magnetic Class : Beta Group Index : 8 Ratio of magnetic polarity (+/-) : 0.583333 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 3.00000 [ 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 : Beta-Gamma Group Index : 9 Ratio of magnetic polarity (+/-) : 0.0267857 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 2 Longitudinal extent of this spot group (deg) : 4.40593 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 24.3682 (criterion : 25) N-S diameter of largest penumbra (deg) : 1.8320582 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.157534 p-Class : s [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.409326 Number of spots with penumbra : 2 c-Class :i McIntosh Class : Dsi [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 10 Ratio of magnetic polarity (+/-) : 100.000 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 49.2648 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.39493957 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.300000 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 11 Ratio of magnetic polarity (+/-) : 0.485175 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.94118 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 28.2181 (criterion : 25) N-S diameter of largest penumbra (deg) : 2.2191849 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.104575 p-Class : a [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.739535 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Cai [ Magnetic Class Determination ] Magnetic Class : Beta