2021 Apr 21 2200 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           3

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.297101
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.25000
[ Z-Class Determination ]
Number of spots :           3
Number of spots with penumbra :           2
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      45.1741 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.38256863 (criterion : 2.5 deg)
Ratio of umbral area to spot area :    0.0769231
p-Class : s
[ c-Class Determination ]
Number of spots :           3
Area ratio (spots/group) :    0.0909091
Number of spots with penumbra :           2
c-Class :o
McIntosh Class : Cso
[ Magnetic Class Determination ]
Magnetic Class : Beta

Group Index :       2
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 :      31.7830 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.1824292 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.104478
p-Class : s
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hsx
[ Magnetic Class Determination ]
Magnetic Class : Alpha

Group Index :       3
Ratio of magnetic polarity (+/-) :     0.720779
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 :      37.5424 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.3113983 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.153846
p-Class : s
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hsx
[ Magnetic Class Determination ]
Magnetic Class : Alpha