1973 DT. Discovered 1973 Feb. 28 by L. Kohoutek at Bergedorf.
Named in honor of James A. C. Simms III (1957– ), a system administrator in the AXAF Science Center at the Smithsonian Astrophysical Observatory. Beginning in 1980, as an operator in the observatory’s central computing facility, he was always particularly helpful in expediting the Minor Planet Center’s computing jobs. (M 34618)
Name proposed by B. G. Marsdenand C. M. Bardwell, who made the identifications involving this object.