1941 SG1. Discovered 1941 Sept. 28 by G. Kulin at Budapest.
Named in memory of Imre Izsák (1929–1965), Hungarian-born astronomer and celestial mechanician, who made important contributions to the study of artificial-satellite motion. In his later years he worked at the Cincinnati Observatory and the Smithsonian Astrophysical Observatory. (M 5182)
Izsák is also honored by a lunar crater.