2015 May 31 1900 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           3

Group Index :       1
Ratio of magnetic polarity (+/-) :      2.85714
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.72093
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      44.6602 (criterion : 25)
N-S diameter of largest penumbra (deg) :       1.5311481 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.144000
p-Class : a
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hax
[ Magnetic Class Determination ]
Magnetic Class : Alpha

Group Index :       2
Ratio of magnetic polarity (+/-) :      0.00000
[ 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 :       3
Ratio of magnetic polarity (+/-) :     0.303797
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.16000
[ 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