2017 Feb 21 1700 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           1

Group Index :       1
Ratio of magnetic polarity (+/-) :      1.46400
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.94186
[ Z-Class Determination ]
Number of spots :           7
Number of spots with penumbra :           2
Longitudinal extent of this spot group (deg) :      8.99828
Z-Class : D
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      28.9045 (criterion : 25)
N-S diameter of largest penumbra (deg) :       1.9100343 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.145455
p-Class : a
[ c-Class Determination ]
Number of spots :           7
Area ratio (spots/group) :     0.243161
Number of spots with penumbra :           2
c-Class :o
McIntosh Class : Dao
[ Magnetic Class Determination ]
Magnetic Class : Beta