2021 Sep 20 1500 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           3

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.432749
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.58621
[ Z-Class Determination ]
Number of spots :           4
Number of spots with penumbra :           2
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      55.8928 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.25723605 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.125000
p-Class : a
[ c-Class Determination ]
Number of spots :           4
Area ratio (spots/group) :     0.461538
Number of spots with penumbra :           2
c-Class :i
McIntosh Class : Cai
[ Magnetic Class Determination ]
Magnetic Class : Beta

Group Index :       2
Ratio of magnetic polarity (+/-) :      1.12121
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.68750
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           2
Longitudinal extent of this spot group (deg) :     0.610172
Z-Class : D
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      51.9482 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.25066858 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.142857
p-Class : a
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.291667
Number of spots with penumbra :           2
c-Class :o
McIntosh Class : Dao
[ Magnetic Class Determination ]
Magnetic Class : Beta

Group Index :       3
Ratio of magnetic polarity (+/-) :     0.360179
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.93478
[ Z-Class Determination ]
Number of spots :           3
Number of spots with penumbra :           2
Longitudinal extent of this spot group (deg) :      11.7620
Z-Class : E
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      47.5041 (criterion : 50)
N-S diameter of largest penumbra (deg) :       3.3001264 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.141304
p-Class : h
[ c-Class Determination ]
Number of spots :           3
Area ratio (spots/group) :     0.770701
Number of spots with penumbra :           2
c-Class :i
McIntosh Class : Ehi
[ Magnetic Class Determination ]
Magnetic Class : Beta