9553 Colas (1985 UG2) is a main-beltasteroid. F. Roig a,∗, R. Gil-Hutton showed (Icarus 2006) that it have a Vesta type spectrum from Sloan Digital Survey.
Citation : 9553 Colas Discovered 1985 Oct. 17 at Caussols. François Colas (b. 1959) is an expert on modern solar-system astrometry at the Institut de Mécanique Celeste in Paris. He has contributed to numerous research papers in observational planetary astronomy. A strong supporter of the Pic du Midi Observatory, he has many fruitful relations with the amateur community.