2025 Jul 31 1700 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 10 Group Index : 1 Ratio of magnetic polarity (+/-) : 0.139785 [ Z-Class Determination ] Number of spots : 4 Number of spots with penumbra : 0 Z-Class : B [ p-Class Determination ] p-Class : x [ c-Class Determination ] Number of spots : 4 Area ratio (spots/group) : 0.134454 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 (+/-) : 3.97222 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.36000 [ 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 (+/-) : 0.247253 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.75000 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 24.4145 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.7592830 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.104651 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 : 51.1339 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.63771578 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.00000 p-Class : a [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hax [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 5 Ratio of magnetic polarity (+/-) : 0.0916667 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 31.1860 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.2775956 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.125000 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 (+/-) : 1.58333 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.35484 [ Z-Class Determination ] Number of spots : 4 Number of spots with penumbra : 2 Longitudinal extent of this spot group (deg) : 5.79692 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 40.1782 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.1956998 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.161290 p-Class : s [ c-Class Determination ] Number of spots : 4 Area ratio (spots/group) : 0.480769 Number of spots with penumbra : 2 c-Class :i McIntosh Class : Dsi [ Magnetic Class Determination ] Magnetic Class : Beta Group Index : 7 Ratio of magnetic polarity (+/-) : 1.10400 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.78571 [ Z-Class Determination ] Number of spots : 8 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 47.3915 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.49259859 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0714286 p-Class : s [ c-Class Determination ] Number of spots : 8 Area ratio (spots/group) : 0.213187 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 (+/-) : 0.0130435 [ Z-Class Determination ] Number of spots : 3 Number of spots with penumbra : 3 Longitudinal extent of this spot group (deg) : 4.35119 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 23.9713 (criterion : 25) N-S diameter of largest penumbra (deg) : 1.6992676 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.175573 p-Class : s [ c-Class Determination ] Number of spots : 3 Area ratio (spots/group) : 0.672811 Number of spots with penumbra : 3 c-Class :c McIntosh Class : Dsc [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 9 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 : 49.8438 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.39455411 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.222222 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 10 Ratio of magnetic polarity (+/-) : 0.512329 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 2.00000 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 22.0945 (criterion : 25) N-S diameter of largest penumbra (deg) : 2.3432760 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.125828 p-Class : s [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.735849 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Csi [ Magnetic Class Determination ] Magnetic Class : Beta