Distribution of candidate E-type asteroids in the a^∗–(u−g) plane. The blue symbols represent the main E-type population (E); the orange symbols show the IMB low-inclination group (E (IMB, low i)); and the green symbols correspond to the Hungaria group (E (Hungaria)). The marker shapes indicate geometric albedo: crosses for p_V < 0.5 and circles for p_V ≥ 0.5. A horizontal shaded band indicates the a^∗ ± 1σ range for 1998 KY₂₆, with the mean a^∗ shown as a dashed line. The two clusters, “Linear” (lower a^∗) and “Convex” (higher a^∗), are separated in this space.