2021 Apr 18 0900 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           2

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.899471
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.57576
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      36.9154 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.53114897 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.142857
p-Class : s
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.104046
Number of spots with penumbra :           1
c-Class :o
McIntosh Class : Cso
[ Magnetic Class Determination ]
Magnetic Class : Beta

Group Index :       2
Ratio of magnetic polarity (+/-) :      100.000
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      110.322 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.42148491 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.166667
p-Class : a
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.130435
Number of spots with penumbra :           1
c-Class :o
McIntosh Class : Cao
[ Magnetic Class Determination ]
Magnetic Class : Alpha