2021 Apr 28 0000 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           2

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.920502
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           4
[ Z-Class Determination ]
Number of spots :          11
Number of spots with penumbra :           3
Longitudinal extent of this spot group (deg) :      19.5858
Z-Class : F
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      21.7845 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.0696311 (criterion : 2.5 deg)
Ratio of umbral area to spot area :    0.0746269
p-Class : s
[ c-Class Determination ]
Number of spots :          11
Area ratio (spots/group) :     0.100545
Number of spots with penumbra :           3
c-Class :o
McIntosh Class : Fso
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma

Group Index :       2
Ratio of magnetic polarity (+/-) :    0.0396825
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      23.9831 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.1245101 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.193548
p-Class : s
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hsx
[ Magnetic Class Determination ]
Magnetic Class : Alpha