4.0 km || |-id=499 bgcolor=#E9E9E9 | 23499 || || — || November 11, 1991 || Kushiro || S. Ueda, H. Kaneda || MRX || align=right | 4.1 km || |-id=500 bgcolor=#E9E9E9 | 23500 || || — || January 9, 1992 || Kitt Peak || Spacewatch || — || align=right | 4.0 km || |} 23501–23600 |-bgcolor=#E9E9E9 | 23501 || || — || February 12, 1992 || Mérida || O. A. Naranjo, J. Stock || slow || align=right | 4.6 km || |-id=502 bgcolor=#fefefe | 23502 || || — || February 25, 1992 || Kitt Peak || Spacewatch || — || align=right | 3.1 km || |-id=503 bgcolor=#E9E9E9 | 23503 || || — || February 29, 1992 || Kitt Peak || Spacewatch || — || align=right | 5.6 km || |-id=504 bgcolor=#E9E9E9 | 23504 Haneda || 1992 EX || || March 7, 1992 || Geisei || T. Seki || — || align=right | 4.7 km || |-id=505 bgcolor=#E9E9E9 | 23505 || || — || March 1, 1992 || La Silla || UESAC || — || align=right | 3.3 km || |-id=506 bgcolor=#E9E9E9 | 23506 || || — || March 2, 1992 || La Silla || UESAC || — || align=right | 3.9 km || |-id=507 bgcolor=#E9E9E9 | 23507 || || — || March 2, 1992 || La Silla || UESAC || PAD || align=right | 7.7 km || |-id=508 bgcolor=#E9E9E9 | 23508 || || — || March 1, 1992 || La Silla || UESAC || — || align=right | 3.5 km || |-id=509 bgcolor=#d6d6d6 | 23509 || || — || April 30, 1992 || Kitt Peak || Spacewatch || — || align=right | 3.6 km || |-id=510 bgcolor=#fefefe | 23510 || || — || August 4, 1992 || Palomar || H. E. Holt || FLO || align=right | 2.2 km || |-id=511 bgcolor=#d6d6d6 | 23511 || || — || August 4, 1992 || Palomar || H. E. Holt || HYG || align=right | 9.9 km || |-id=512 bgcolor=#d6d6d6 | 23512 || || — || August 6, 1992 || Palomar || H. E. Holt || — || align=right | 7.8 km || |-id=513 bgcolor=#fefefe | 23513 || || — || August 2, 1992 || Palomar || H. E. Holt || FLO || align=right | 3.6 km || |-id=514 bgcolor=#fefefe | 23514 Schneider || 1992 RU || || September 2, 1992 || Tautenburg Observatory || F. Börngen, L. D. Schmadel || — ||