2021 Sep 02 1600 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 1 Group Index : 1 Ratio of magnetic polarity (+/-) : 2.18571 More than one magnetic neutral line is found Number of Significant Neutral Lines : 1 Roughness of the longest magnetic neutral line : 1.90196 [ Z-Class Determination ] Number of spots : 4 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 25.8400 (criterion : 25) N-S diameter of largest penumbra (deg) : 2.0450122 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.136752 p-Class : a [ c-Class Determination ] Number of spots : 4 Area ratio (spots/group) : 0.505848 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Cai [ Magnetic Class Determination ] Magnetic Class : Beta