2021 Apr 20 1900 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           4

Group Index :       1
Ratio of magnetic polarity (+/-) :      1.15360
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           5
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      27.3214 (criterion : 50)
N-S diameter of largest penumbra (deg) :       2.6053961 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.193878
p-Class : h
[ c-Class Determination ]
Number of spots :           5
Area ratio (spots/group) :     0.485075
Number of spots with penumbra :           1
c-Class :i
McIntosh Class : Chi
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma

Group Index :       2
Ratio of magnetic polarity (+/-) :     0.342541
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.51351
[ Z-Class Determination ]
Number of spots :           3
Number of spots with penumbra :           3
Longitudinal extent of this spot group (deg) :      6.08069
Z-Class : D
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      53.0605 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.51094178 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.235294
p-Class : a
[ c-Class Determination ]
Number of spots :           3
Area ratio (spots/group) :     0.211340
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 (+/-) :      81.4000
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      29.0889 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.3181549 (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 (+/-) :      1.50633
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.16129
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      36.7716 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.3414244 (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