2018 Apr 21 2300 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           2

Group Index :       1
Ratio of magnetic polarity (+/-) :    0.0545455
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           0
Z-Class : A
[ p-Class Determination ]
p-Class : x
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Axx
[ Magnetic Class Determination ]
Magnetic Class : Alpha

Group Index :       2
Ratio of magnetic polarity (+/-) :      1.32297
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.62500
[ Z-Class Determination ]
Number of spots :           4
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      36.3838 (criterion : 25)
N-S diameter of largest penumbra (deg) :       1.7228716 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.115044
p-Class : a
[ c-Class Determination ]
Number of spots :           4
Area ratio (spots/group) :     0.349246
Number of spots with penumbra :           1
c-Class :o
McIntosh Class : Cao
[ Magnetic Class Determination ]
Magnetic Class : Beta