2016 Mar 28 1900 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 1 Group Index : 1 Ratio of magnetic polarity (+/-) : 4.41739 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.54386 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 2 Longitudinal extent of this spot group (deg) : 2.79850 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 17.8867 (criterion : 25) N-S diameter of largest penumbra (deg) : 2.8999327 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.190361 p-Class : h [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.862550 Number of spots with penumbra : 2 c-Class :i McIntosh Class : Dhi [ Magnetic Class Determination ] Magnetic Class : Beta