• 1990 OD1 Yoshiken July 20, 1990 Geisei T. Seki  · 3.4 km MPC · JPL 15253 1990 QA4 — August 23, 1990 Palomar H. E. Holt  · 7.1 km MPC · JPL 15254 1990...
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    (1990 RH4)". Minor Planet Center. Retrieved 25 January 2016. Bowell, E.; Holt, H. E.; Olmstead, C. M.; Holt, H. R.; Brown, J. A.; Bus, S. J. (1990-09-01)...
    56 KB (397 words) - 21:38, 27 December 2022