2021 Aug 16 2300 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 1 Group Index : 1 Ratio of magnetic polarity (+/-) : 0.837349 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.25000 [ Z-Class Determination ] Number of spots : 3 Number of spots with penumbra : 2 Longitudinal extent of this spot group (deg) : 2.77468 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 34.8281 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.37521914 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.150000 p-Class : s [ c-Class Determination ] Number of spots : 3 Area ratio (spots/group) : 0.673469 Number of spots with penumbra : 2 c-Class :i McIntosh Class : Dsi [ Magnetic Class Determination ] Magnetic Class : Beta