2021 Apr 18 2100 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           2

Group Index :       1
Ratio of magnetic polarity (+/-) :    0.0652174
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           2
Longitudinal extent of this spot group (deg) :      4.92092
Z-Class : D
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      40.8625 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.66045688 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.260870
p-Class : s
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.161172
Number of spots with penumbra :           2
c-Class :o
McIntosh Class : Dso
[ Magnetic Class Determination ]
Magnetic Class : Alpha

Group Index :       2
Ratio of magnetic polarity (+/-) :      0.00000
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      50.3431 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.96246737 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.225806
p-Class : a
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.342593
Number of spots with penumbra :           1
c-Class :o
McIntosh Class : Cao
[ Magnetic Class Determination ]
Magnetic Class : Alpha