C. S. Shoemaker, E. M. Shoemaker || H || align=right | 1.9 km || |-id=453 bgcolor=#d6d6d6 | 23453 || 1988 QR || — || August 19, 1988 || Siding Spring || R. H. McNaught || — || align=right | 10 km || |-id=454 bgcolor=#E9E9E9 | 23454 || || — || December 1, 1988 || Brorfelde || P. Jensen || — || align=right | 5.5 km || |-id=455 bgcolor=#d6d6d6 | 23455 Fumi || || || December 5, 1988 || Kiso || T. Nakamura || EOS || align=right | 8.7 km || |-id=456 bgcolor=#fefefe | 23456 || 1989 DB || — || February 26, 1989 || Toyota || K. Suzuki, T. Furuta || — || align=right | 3.9 km || |-id=457 bgcolor=#E9E9E9 | 23457 Beiderbecke || || || April 5, 1989 || La Silla || M. Geffert || — || align=right | 4.4 km || |-id=458 bgcolor=#E9E9E9 | 23458 || || — || September 6, 1989 || Palomar || E. F. Helin || — || align=right | 7.2 km || |-id=459 bgcolor=#E9E9E9 | 23459 || || — || September 26, 1989 || La Silla || E. W. Elst || — || align=right | 9.0 km || |-id=460 bgcolor=#fefefe | 23460 || || — || September 26, 1989 || La Silla || H. Debehogne || — || align=right | 2.5 km || |-id=461 bgcolor=#E9E9E9 | 23461 || || — || October 7, 1989 || La Silla || E. W. Elst || — || align=right | 5.2 km || |-id=462 bgcolor=#E9E9E9 | 23462 || || — || October 7, 1989 || La Silla || E. W. Elst || — || align=right | 3.1 km || |-id=463 bgcolor=#C2FFFF | 23463 || || — || October 2, 1989 || Cerro Tololo || S. J. Bus || L5 || align=right | 26 km || |-id=464 bgcolor=#fefefe | 23464 || || — || October 3, 1989 || La Silla || H. Debehogne || — || align=right | 2.6 km || |-id=465 bgcolor=#fefefe | 23465 Yamashitakouhei || || || October 24, 1989 || Kitami || M. Yanai, K. Watanabe || FLO || align=right | 2.9 km || |-id=466 bgcolor=#fefefe | 23466 || || — || February 28, 1990 || La Silla || H. Debehogne || — || align=right | 6.1 km || |-id=467 bgcolor=#E9E9E9 | 23467 || || — || August 20, 1990 || Palomar || E. F. Helin || — || align=right | 2.6 km || |-id=468 bgcolor=#E9E9E9