2018 May 28 1600 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           1

Group Index :       1
Ratio of magnetic polarity (+/-) :      2.48011
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      2.12766
[ Z-Class Determination ]
Number of spots :           7
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      57.3035 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.2963557 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.194444
p-Class : a
[ c-Class Determination ]
Number of spots :           7
Area ratio (spots/group) :     0.267218
Number of spots with penumbra :           1
c-Class :o
McIntosh Class : Cao
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma