Named in honor of Kazuko Otsuka (1934– ), who joined the staff of the Tokyo Astronomical Observatory in 1957 on the occasion of the International Geophysical Year. She did secretarial work relating to observations with the Markowitz Moon Camera, by the Baker-Nunn Satellite-Tracking Camera and the Moonwatch project. Later she worked for the Sky Patrol Section and the Dodaira Station, and she retired in 1995. (M 30099) _ _.