1975 NF. Discovered 1975 July 1 at the Felix Aguilar Observatory at El Leoncito.
Named in memory of José Mateo (1914–1978), a geophysicist who was for many years in charge of the Gravimetry and Tide Department of the La Plata Observatory. Later, as director of the observatory, he started the final phase of construction of the astronomical complex at El Leoncito. (M 13608)