2025 Apr 30 0900 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           4

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.344000
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           3
Number of spots with penumbra :           2
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      47.9086 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.3249080 (criterion : 2.5 deg)
Ratio of umbral area to spot area :    0.0937500
p-Class : s
[ c-Class Determination ]
Number of spots :           3
Area ratio (spots/group) :     0.492537
Number of spots with penumbra :           2
c-Class :i
McIntosh Class : Csi
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma

Group Index :       2
Ratio of magnetic polarity (+/-) :     0.386935
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.97917
[ Z-Class Determination ]
Number of spots :           3
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      46.3101 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.76426481 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.142857
p-Class : s
[ c-Class Determination ]
Number of spots :           3
Area ratio (spots/group) :     0.369159
Number of spots with penumbra :           1
c-Class :o
McIntosh Class : Cso
[ Magnetic Class Determination ]
Magnetic Class : Beta

Group Index :       3
Ratio of magnetic polarity (+/-) :      4.15278
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           1
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      15.2943 (criterion : 25)
N-S diameter of largest penumbra (deg) :       1.9751615 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.170732
p-Class : s
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.689189
Number of spots with penumbra :           1
c-Class :i
McIntosh Class : Csi
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma

Group Index :       4
Ratio of magnetic polarity (+/-) :     0.533141
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           3
Number of spots with penumbra :           2
Longitudinal extent of this spot group (deg) :      10.0720
Z-Class : E
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      38.2731 (criterion : 25)
N-S diameter of largest penumbra (deg) :       5.5353493 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.145813
p-Class : k
[ c-Class Determination ]
Number of spots :           3
Area ratio (spots/group) :     0.773325
Number of spots with penumbra :           2
c-Class :i
McIntosh Class : Eki
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma