2021 Aug 22 1500 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 1 Group Index : 1 Ratio of magnetic polarity (+/-) : 0.787546 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 4.83333 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 2 Longitudinal extent of this spot group (deg) : 0.432598 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 53.4191 (criterion : 50) N-S diameter of largest penumbra (deg) : 2.4374416 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.125000 p-Class : a [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.686131 Number of spots with penumbra : 2 c-Class :i McIntosh Class : Dai [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma