2021 Apr 18 1600 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 1 Group Index : 1 Ratio of magnetic polarity (+/-) : 1.13699 More than one magnetic neutral line is found Number of Significant Neutral Lines : 2 [ Z-Class Determination ] Number of spots : 6 Number of spots with penumbra : 3 Longitudinal extent of this spot group (deg) : 7.13713 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 53.0379 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.80053079 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.217391 p-Class : a [ c-Class Determination ] Number of spots : 6 Area ratio (spots/group) : 0.220000 Number of spots with penumbra : 3 c-Class :o McIntosh Class : Dao [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma