2528 P-L. Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld at Palomar.
Named for the city in Arizona. Prominent astronomical institutions in Tucson are the Lunar and Planetary Laboratory of the University of Arizona, Kitt Peak National Observatory, and Steward Observatory. (M 5524)
Name proposed by E. Bowell.