| 23468 Kannabe || || || September 20, 1990 || Geisei || T. Seki || — || align=right | 7.1 km || |-id=469 bgcolor=#E9E9E9 | 23469 Neilpeart || || || September 22, 1990 || Palomar || B. Roman || EUN || align=right | 6.3 km || |-id=470 bgcolor=#E9E9E9 | 23470 || || — || September 22, 1990 || La Silla || E. W. Elst || — || align=right | 5.2 km || |-id=471 bgcolor=#E9E9E9 | 23471 Kawatamasaaki || || || October 15, 1990 || Kitami || K. Endate, K. Watanabe || — || align=right | 8.6 km || |-id=472 bgcolor=#E9E9E9 | 23472 Rolfriekher || || || October 10, 1990 || Tautenburg Observatory || L. D. Schmadel, F. Börngen || — || align=right | 4.1 km || |-id=473 bgcolor=#E9E9E9 | 23473 Voss || || || October 11, 1990 || Tautenburg Observatory || F. Börngen, L. D. Schmadel || — || align=right | 6.6 km || |-id=474 bgcolor=#E9E9E9 | 23474 || || — || October 20, 1990 || Siding Spring || R. H. McNaught || — || align=right | 4.9 km || |-id=475 bgcolor=#E9E9E9 | 23475 Nakazawa || || || November 13, 1990 || Kitami || K. Endate, K. Watanabe || — || align=right | 6.0 km || |-id=476 bgcolor=#E9E9E9 | 23476 || || — || November 15, 1990 || Ojima || T. Niijima, T. Urata || — || align=right | 3.8 km || |-id=477 bgcolor=#E9E9E9 | 23477 Wallenstadt || || || November 18, 1990 || La Silla || E. W. Elst || EUN || align=right | 5.5 km || |-id=478 bgcolor=#E9E9E9 | 23478 Chikumagawa || 1991 BZ || || January 21, 1991 || Geisei || T. Seki || slow || align=right | 7.9 km || |-id=479 bgcolor=#d6d6d6 | 23479 || 1991 CG || — || February 5, 1991 || Yorii || M. Arai, H. Mori || MEL || align=right | 14 km || |-id=480 bgcolor=#C2FFFF | 23480 || 1991 EL || — || March 10, 1991 || Siding Spring || R. H. McNaught || L4 || align=right | 28 km || |-id=481 bgcolor=#fefefe | 23481 || || — || April 8, 1991 || La Silla || E. W. Elst || FLO || align=right | 2.9 km || |-id=482 bgcolor=#fefefe | 23482 || 1991 LV || — || June 14, 1991 || Palomar || E. F. Helin || H || align=right | 4.5 km || |-id=483 bgcolor=#fefefe | 23483 || || —