2021 Oct 31 1900 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           4

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.757576
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.17143
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      18.8431 (criterion : 25)
N-S diameter of largest penumbra (deg) :       1.8788205 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.166667
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 (+/-) :     0.565972
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           3
Number of spots with penumbra :           0
Z-Class : B
[ p-Class Determination ]
p-Class : x
[ c-Class Determination ]
Number of spots :           3
Area ratio (spots/group) :     0.166667
Number of spots with penumbra :           0
c-Class :o
McIntosh Class : Bxo
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma

Group Index :       3
Ratio of magnetic polarity (+/-) :      1.24166
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           9
Number of spots with penumbra :           3
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      21.0026 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.2329826 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.103093
p-Class : s
[ c-Class Determination ]
Number of spots :           9
Area ratio (spots/group) :     0.311765
Number of spots with penumbra :           3
c-Class :o
McIntosh Class : Cso
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma

Group Index :       4
Ratio of magnetic polarity (+/-) :      1.23611
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.30556
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      40.1820 (criterion : 50)
N-S diameter of largest penumbra (deg) :       2.6358726 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.109589
p-Class : h
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hhx
[ Magnetic Class Determination ]
Magnetic Class : Alpha