Named in honor of Keith D. Rosema (1967– ), computer scientist at the Jet Propulsion Laboratory. In 1989, Rosema completed the first California Institute of Technology senior thesis in asteroid radar astronomy. Since then he has used his formidable computer-programming expertise and analytic talents to make crucial contributions to observations of near-earth and main-belt asteroids. His library of software has proved to be an essential tool for reduction and analysis of echoes from most of the radar-detected asteroids, including (4769) Castalia, (4179) Toutatis, (1620) Geographos and (6489) Golevka. Rosema is also one of a handful of people who have devoted extensive time to asteroid radar astronomy at both Arecibo and Goldstone {see, respectively, planets  (4337) and  (4433)}. (M 25655) _ _.