2023 Apr 28 1900 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           4

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.985423
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.36620
[ Z-Class Determination ]
Number of spots :           3
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      45.1862 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.86962223 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.170732
p-Class : s
[ c-Class Determination ]
Number of spots :           3
Area ratio (spots/group) :     0.327068
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 (+/-) :      1.11798
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           3
[ Z-Class Determination ]
Number of spots :          10
Number of spots with penumbra :           5
Longitudinal extent of this spot group (deg) :      15.2639
Z-Class : F
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      16.9477 (criterion : 25)
N-S diameter of largest penumbra (deg) :       2.6858122 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.189840
p-Class : h
[ c-Class Determination ]
Number of spots :          10
Area ratio (spots/group) :     0.389913
Number of spots with penumbra :           5
c-Class :o
McIntosh Class : Fho
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma

Group Index :       3
Ratio of magnetic polarity (+/-) :      1.96405
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           1
Roughness of the longest magnetic neutral line :      2.00000
[ Z-Class Determination ]
Number of spots :           7
Number of spots with penumbra :           4
Longitudinal extent of this spot group (deg) :      2.40694
Z-Class : D
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      19.8475 (criterion : 25)
N-S diameter of largest penumbra (deg) :       1.7994644 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.153153
p-Class : s
[ c-Class Determination ]
Number of spots :           7
Area ratio (spots/group) :     0.346484
Number of spots with penumbra :           4
c-Class :o
McIntosh Class : Dso
[ Magnetic Class Determination ]
Magnetic Class : Beta

Group Index :       4
Ratio of magnetic polarity (+/-) :      6.50000
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      54.0230 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.54041478 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.117647
p-Class : a
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hax
[ Magnetic Class Determination ]
Magnetic Class : Alpha