2021 Apr 20 2000 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           4

Group Index :       1
Ratio of magnetic polarity (+/-) :      1.13968
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           4
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      34.1627 (criterion : 50)
N-S diameter of largest penumbra (deg) :       2.4534256 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.200000
p-Class : s
[ c-Class Determination ]
Number of spots :           4
Area ratio (spots/group) :     0.441767
Number of spots with penumbra :           1
c-Class :i
McIntosh Class : Csi
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma

Group Index :       2
Ratio of magnetic polarity (+/-) :     0.339943
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.58824
[ Z-Class Determination ]
Number of spots :           3
Number of spots with penumbra :           3
Longitudinal extent of this spot group (deg) :      6.05956
Z-Class : D
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      56.7928 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.38329648 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.250000
p-Class : a
[ c-Class Determination ]
Number of spots :           3
Area ratio (spots/group) :     0.223529
Number of spots with penumbra :           3
c-Class :o
McIntosh Class : Dao
[ Magnetic Class Determination ]
Magnetic Class : Beta

Group Index :       3
Ratio of magnetic polarity (+/-) :      77.4000
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      30.3330 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.5814359 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.161290
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 (+/-) :      1.60000
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.14706
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      45.8292 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.4786444 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.151515
p-Class : s
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hsx
[ Magnetic Class Determination ]
Magnetic Class : Alpha