2021 Mar 18 0300 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           1

Group Index :       1
Ratio of magnetic polarity (+/-) :      5.52778
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      65.8815 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.73364052 (criterion : 2.5 deg)
Ratio of umbral area to spot area :    0.0714286
p-Class : a
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.882353
Number of spots with penumbra :           1
c-Class :i
McIntosh Class : Cai
[ Magnetic Class Determination ]
Magnetic Class : Alpha