2018 Feb 13 1800 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           1

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.851508
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           4
Number of spots with penumbra :           2
Longitudinal extent of this spot group (deg) :      10.0380
Z-Class : E
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      22.5718 (criterion : 25)
N-S diameter of largest penumbra (deg) :       2.2659939 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.105882
p-Class : s
[ c-Class Determination ]
Number of spots :           4
Area ratio (spots/group) :     0.403134
Number of spots with penumbra :           2
c-Class :i
McIntosh Class : Esi
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma