2021 Jun 18 1800 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           1

Group Index :       1
Ratio of magnetic polarity (+/-) :      1.85253
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      15.5717 (criterion : 25)
N-S diameter of largest penumbra (deg) :       2.2668080 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.174721
p-Class : s
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.763231
Number of spots with penumbra :           1
c-Class :i
McIntosh Class : Csi
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma