|| || || January 10, 1989 || Tautenburg Observatory || F. Börngen || — || align=right | 4.2 km || |-id=497 bgcolor=#E9E9E9 | 11497 || || — || February 6, 1989 || Palomar || E. F. Helin || — || align=right | 7.9 km || |-id=498 bgcolor=#E9E9E9 | 11498 Julgeerts || || || April 3, 1989 || La Silla || E. W. Elst || — || align=right | 5.9 km || |-id=499 bgcolor=#fefefe | 11499 Duras || 1989 RL || || September 2, 1989 || Haute-Provence || E. W. Elst || — || align=right | 3.0 km || |-id=500 bgcolor=#FFC2E0 | 11500 Tomaiyowit || 1989 UR || || October 28, 1989 || Palomar || J. E. Mueller, J. D. Mendenhall || APOPHA || align=right data-sort-value="0.74" | 740 m || |} 11501–11600 |-bgcolor=#fefefe | 11501 || || — || October 29, 1989 || Kani || Y. Mizuno, T. Furuta || — || align=right | 3.2 km || |-id=502 bgcolor=#d6d6d6 | 11502 || || — || November 21, 1989 || Kushiro || S. Ueda, H. Kaneda || THM || align=right | 12 km || |-id=503 bgcolor=#fefefe | 11503 || 1990 BF || — || January 21, 1990 || Kani || Y. Mizuno, T. Furuta || FLO || align=right | 5.1 km || |-id=504 bgcolor=#fefefe | 11504 Kazo || 1990 BT || || January 21, 1990 || Okutama || T. Hioki, S. Hayakawa || — || align=right | 4.3 km || |-id=505 bgcolor=#d6d6d6 | 11505 || || — || February 24, 1990 || La Silla || H. Debehogne || 7:4 || align=right | 17 km || |-id=506 bgcolor=#fefefe | 11506 Toulouse-Lautrec || || || March 2, 1990 || La Silla || E. W. Elst || — || align=right | 3.2 km || |-id=507 bgcolor=#E9E9E9 | 11507 Danpascu || 1990 OF || || July 20, 1990 || Palomar || E. F. Helin || — || align=right | 5.4 km || |-id=508 bgcolor=#E9E9E9 | 11508 Stolte || || || October 12, 1990 || Tautenburg Observatory || L. D. Schmadel, F. Börngen || GEF || align=right | 6.6 km || |-id=509 bgcolor=#C2FFFF | 11509 Thersilochos || || || November 15, 1990 || La Silla || E. W. Elst || L5 || align=right | 50 km || |-id=510 bgcolor=#d6d6d6 | 11510 Borges || || || November 11, 1990 || La Silla || E. W. Elst || BRA || align=right | 8.4 km || |-id=511 bgcolor=#E9E9E9 | 11511