Named in honor of Klaus Keil (1934– ), American meteoriticist. An authority on the petrology of enstatite meteorites, Keil has also studied almost every other group of meteorites. He has headed active meteorite research groups at the University of New Mexico and the University of Hawaii. He was awarded the Leonard Medal of the Meteoritical Society, the highest award bestowed by that body, in 1988. Recently, Keil has been actively involved in spectral studies of meteorites as asteroid analogues. His work on shock-darkened meteorites and gas-rich regolith breccias has increased our understanding of the spectral properties of asteroidal surfaces. (M 22830) _ _.