Named in honor of Tor Hagfors (1930– ), in celebration of his 68th birthday and his retirement as director of the Max-Planck-Institut für Aeronomie. In the 1960s, at the Massachusetts Institute of Technology’s Lincoln Laboratory, Hagfors conducted extensive radar investigations of the moon. The radar backscattering function now called the Hagfors Law, which he derived to support his analysis of lunar echoes, remains the most widely applied model for interpreting quasispecular echoes from the moon, Mercury, Mars and Venus. Hagfors served as director of operations of the National Astronomy and Ionosphere Center’s Arecibo {see planet  (4337)} Observatory from 1971 to 1973 and as director of NAIC during the time, 1982–1992, when Arecibo conducted 68 successful radar experiments on minor planets. (M 34342) _ _.