|| September 21, 1990 || La Silla || H. Debehogne || THM || align=right | 11 km || |-id=262 bgcolor=#d6d6d6 | 15262 Abderhalden || || || October 12, 1990 || Tautenburg Observatory || F. Börngen, L. D. Schmadel || THM || align=right | 12 km || |-id=263 bgcolor=#fefefe | 15263 Erwingroten || || || October 13, 1990 || Tautenburg Observatory || L. D. Schmadel, F. Börngen || NYS || align=right | 3.2 km || |-id=264 bgcolor=#fefefe | 15264 Delbrück || || || October 11, 1990 || Tautenburg Observatory || F. Börngen, L. D. Schmadel || NYS || align=right | 5.8 km || |-id=265 bgcolor=#fefefe | 15265 Ernsting || || || October 12, 1990 || Tautenburg Observatory || L. D. Schmadel, F. Börngen || CHL || align=right | 6.3 km || |-id=266 bgcolor=#fefefe | 15266 || || — || October 16, 1990 || La Silla || E. W. Elst || — || align=right | 3.0 km || |-id=267 bgcolor=#fefefe | 15267 Kolyma || || || November 15, 1990 || La Silla || E. W. Elst || — || align=right | 7.4 km || |-id=268 bgcolor=#fefefe | 15268 Wendelinefroger || || || November 18, 1990 || La Silla || E. W. Elst || NYSmoon || align=right | 2.9 km || |-id=269 bgcolor=#E9E9E9 | 15269 || 1990 XF || — || December 8, 1990 || Yatsugatake || Y. Kushida, O. Muramatsu || — || align=right | 11 km || |-id=270 bgcolor=#E9E9E9 | 15270 || || — || January 7, 1991 || Siding Spring || R. H. McNaught || — || align=right | 4.6 km || |-id=271 bgcolor=#E9E9E9 | 15271 || 1991 DE || — || February 19, 1991 || Oohira || T. Urata || — || align=right | 7.4 km || |-id=272 bgcolor=#E9E9E9 | 15272 || 1991 GH || — || April 3, 1991 || Dynic || A. Sugie || — || align=right | 7.0 km || |-id=273 bgcolor=#E9E9E9 | 15273 Ruhmkorff || || || April 8, 1991 || La Silla || E. W. Elst || — || align=right | 5.5 km || |-id=274 bgcolor=#E9E9E9 | 15274 || || — || April 8, 1991 || La Silla || E. W. Elst || MARslow || align=right | 5.1 km || |-id=275 bgcolor=#E9E9E9 | 15275 || || — || April 8, 1991 || La Silla || E. W. Elst || — || align=right | 5.2 km || |-id=276 bgcolor=#E9E9E9 | 15276 Diebel || || ||