1950 JB. Discovered 1950 May 14 by K. Reinmuth at Heidelberg.

Named in honor of Seishi Shinagawa (1944- ), who was the first to use electronic computers for orbit computation in Japan, having written a computer program for this in 1965. This program was used by Yoshiaki Banno (1952-1991) {see planet (3394)}. (M 22500)

Name proposed by S. Nakano, who found the identifications involving this object and learnt orbit computation and programming from Shinagawa and Banno.

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