bgcolor=#fefefe | 91256 || || — || February 12, 1999 || Socorro || LINEAR || FLO || align=right | 3.1 km || |-id=257 bgcolor=#fefefe | 91257 || || — || February 13, 1999 || Monte Agliale || E. Mazzoni || — || align=right | 1.7 km || |-id=258 bgcolor=#fefefe | 91258 || || — || February 10, 1999 || Socorro || LINEAR || V || align=right | 1.9 km || |-id=259 bgcolor=#fefefe | 91259 || || — || February 10, 1999 || Socorro || LINEAR || FLO || align=right | 2.4 km || |-id=260 bgcolor=#fefefe | 91260 || || — || February 10, 1999 || Socorro || LINEAR || — || align=right | 2.4 km || |-id=261 bgcolor=#fefefe | 91261 || || — || February 10, 1999 || Socorro || LINEAR || FLO || align=right | 1.8 km || |-id=262 bgcolor=#fefefe | 91262 || || — || February 10, 1999 || Socorro || LINEAR || V || align=right | 1.5 km || |-id=263 bgcolor=#fefefe | 91263 || || — || February 12, 1999 || Socorro || LINEAR || — || align=right | 1.7 km || |-id=264 bgcolor=#fefefe | 91264 || || — || February 12, 1999 || Socorro || LINEAR || NYS || align=right | 2.6 km || |-id=265 bgcolor=#fefefe | 91265 || || — || February 12, 1999 || Socorro || LINEAR || — || align=right | 3.9 km || |-id=266 bgcolor=#fefefe | 91266 || || — || February 12, 1999 || Socorro || LINEAR || — || align=right | 1.9 km || |-id=267 bgcolor=#fefefe | 91267 || || — || February 12, 1999 || Socorro || LINEAR || V || align=right | 1.6 km || |-id=268 bgcolor=#fefefe | 91268 || || — || February 8, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.6 km || |-id=269 bgcolor=#fefefe | 91269 || || — || February 9, 1999 || Kitt Peak || Spacewatch || FLO || align=right | 1.4 km || |-id=270 bgcolor=#fefefe | 91270 || || — || February 9, 1999 || Kitt Peak || Spacewatch || NYS || align=right | 3.7 km || |-id=271 bgcolor=#fefefe | 91271 || || — || February 9, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.6 km || |-id=272 bgcolor=#fefefe | 91272 || || — || February 10, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.9 km || |-id=273 bgcolor=#d6d6d6 |