E-class asteroid

E-class asteroids are a taxonomic classification of asteroids characterized by their high albedos, meaning they reflect a significant amount of sunlight. Their spectral reflectances are similar to those of enstatite achondrite meteorites.1

Asteroids are classified into various taxonomic classes based on their albedo and spectral reflectance measurements. These measurements help infer the composition of the asteroid's surface by comparing it to laboratory data from meteorites and terrestrial rocks.1

While most larger asteroids are C-class, S-class, D-class, P-class, or M-class, E-class asteroids are not found among those with diameters greater than 25 km.1