David W. Dunham, The Minor Planet Bulletin, Volume 6, p. 13 - 14 (December 1978) ADS archive copy However, careful examination in 1993, using the Hubble Space Telescope, failed to locate a secondary.
David W. Dunham, The Minor Planet Bulletin, Volume 6, p. 13 - 14 (December 1978) ADS archive copy: However, a careful search using the Hubble Space Telescope in 1993 failed to find a secondary.