2021 Apr 23 1900 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           4

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.241935
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.66667
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      38.1151 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.51832338 (criterion : 2.5 deg)
Ratio of umbral area to spot area :    0.0666667
p-Class : s
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.196429
Number of spots with penumbra :           1
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 :           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 (+/-) :      9.80000
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      40.5534 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.27968772 (criterion : 2.5 deg)
Ratio of umbral area to spot area :      0.00000
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 (+/-) :     0.185185
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      16.0131 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.2494347 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.157303
p-Class : s
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hsx
[ Magnetic Class Determination ]
Magnetic Class : Alpha