September 7, 1988 || Kitami || K. Endate, K. Watanabe || — || align=right | 5.1 km || |-id=492 bgcolor=#E9E9E9 | 4492 Debussy || 1988 SH || || September 17, 1988 || Haute-Provence || E. W. Elst || moon || align=right | 17 km || |-id=493 bgcolor=#d6d6d6 | 4493 Naitomitsu || || || October 14, 1988 || Chiyoda || T. Kojima || EOS || align=right | 17 km || |-id=494 bgcolor=#fefefe | 4494 Marimo || || || October 13, 1988 || Kushiro || S. Ueda, H. Kaneda || — || align=right | 5.7 km || |-id=495 bgcolor=#d6d6d6 | 4495 Dassanowsky || 1988 VS || || November 6, 1988 || Yorii || M. Arai, H. Mori || 3:2 || align=right | 24 km || |-id=496 bgcolor=#E9E9E9 | 4496 Kamimachi || || || December 9, 1988 || Geisei || T. Seki || AGN || align=right | 7.2 km || |-id=497 bgcolor=#fefefe | 4497 Taguchi || || || January 4, 1989 || Kitami || K. Endate, K. Watanabe || — || align=right | 7.8 km || |-id=498 bgcolor=#d6d6d6 | 4498 Shinkoyama || || || January 5, 1989 || Geisei || T. Seki || EOS || align=right | 17 km || |-id=499 bgcolor=#d6d6d6 | 4499 Davidallen || || || January 4, 1989 || Siding Spring || R. H. McNaught || — || align=right | 16 km || |-id=500 bgcolor=#d6d6d6 | 4500 Pascal || 1989 CL || || February 3, 1989 || Kushiro || S. Ueda, H. Kaneda || — || align=right | 16 km || |} 4501–4600 |-bgcolor=#C2FFFF | 4501 Eurypylos || || || February 4, 1989 || La Silla || E. W. Elst || L4 || align=right | 46 km || |-id=502 bgcolor=#E9E9E9 | 4502 Elizabethann || 1989 KG || || May 29, 1989 || Palomar || H. E. Holt || — || align=right | 12 km || |-id=503 bgcolor=#FFC2E0 | 4503 Cleobulus || 1989 WM || || November 28, 1989 || Palomar || C. S. Shoemaker || AMO +1km || align=right | 2.5 km || |-id=504 bgcolor=#E9E9E9 | 4504 Jenkinson || 1989 YO || || December 21, 1989 || Siding Spring || R. H. McNaught || MAR || align=right | 7.4 km || |-id=505 bgcolor=#d6d6d6 | 4505 Okamura || || || February 20, 1990 || Geisei || T. Seki || EOS || align=right | 19 km || |-id=506 bgcolor=#d6d6d6 | 4506 Hendrie || 1990 FJ || || March 24, 1990 || Stakenbridge