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

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.525822
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.56410
[ Z-Class Determination ]
Number of spots :           5
Number of spots with penumbra :           3
Longitudinal extent of this spot group (deg) :      5.69907
Z-Class : D
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      69.7811 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.51170848 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.142857
p-Class : a
[ c-Class Determination ]
Number of spots :           5
Area ratio (spots/group) :     0.335196
Number of spots with penumbra :           3
c-Class :o
McIntosh Class : Dao
[ Magnetic Class Determination ]
Magnetic Class : Beta

Group Index :       2
Ratio of magnetic polarity (+/-) :     0.285714
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.16667
[ 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 (+/-) :      1.97917
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.37143
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      33.1056 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.49898830 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.157895
p-Class : s
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.511111
Number of spots with penumbra :           1
c-Class :i
McIntosh Class : Csi
[ Magnetic Class Determination ]
Magnetic Class : Beta

Group Index :       4
Ratio of magnetic polarity (+/-) :     0.300199
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           2
Longitudinal extent of this spot group (deg) :      11.5303
Z-Class : E
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      43.8904 (criterion : 25)
N-S diameter of largest penumbra (deg) :       3.3871764 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.134921
p-Class : k
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.787736
Number of spots with penumbra :           2
c-Class :i
McIntosh Class : Eki
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma