91273 || 1999 DN || — || February 16, 1999 || Caussols || ODAS || HIL3:2 || align=right | 14 km || |-id=274 bgcolor=#fefefe | 91274 || || — || February 18, 1999 || Višnjan Observatory || K. Korlević, M. Jurić || NYS || align=right | 2.2 km || |-id=275 bgcolor=#fefefe | 91275 Billsmith || || || March 13, 1999 || Goodricke-Pigott || R. A. Tucker || NYS || align=right | 1.2 km || |-id=276 bgcolor=#fefefe | 91276 || || — || March 14, 1999 || Kitt Peak || Spacewatch || — || align=right | 2.2 km || |-id=277 bgcolor=#fefefe | 91277 || || — || March 14, 1999 || Kitt Peak || Spacewatch || — || align=right | 4.1 km || |-id=278 bgcolor=#fefefe | 91278 || || — || March 14, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.6 km || |-id=279 bgcolor=#fefefe | 91279 || || — || March 14, 1999 || Kitt Peak || Spacewatch || — || align=right | 2.1 km || |-id=280 bgcolor=#fefefe | 91280 || || — || March 15, 1999 || Kitt Peak || Spacewatch || MAS || align=right | 1.6 km || |-id=281 bgcolor=#fefefe | 91281 || || — || March 12, 1999 || Socorro || LINEAR || PHO || align=right | 5.6 km || |-id=282 bgcolor=#E9E9E9 | 91282 || || — || March 16, 1999 || Kitt Peak || Spacewatch || — || align=right | 2.5 km || |-id=283 bgcolor=#fefefe | 91283 || || — || March 16, 1999 || Kitt Peak || Spacewatch || ERI || align=right | 1.8 km || |-id=284 bgcolor=#fefefe | 91284 || || — || March 19, 1999 || Fountain Hills || C. W. Juels || — || align=right | 2.1 km || |-id=285 bgcolor=#fefefe | 91285 || || — || March 22, 1999 || Anderson Mesa || LONEOS || — || align=right | 5.0 km || |-id=286 bgcolor=#fefefe | 91286 || || — || March 23, 1999 || Kitt Peak || Spacewatch || MAS || align=right | 1.8 km || |-id=287 bgcolor=#fefefe | 91287 Simon-Garfunkel || || || March 21, 1999 || Wykrota || C. Jacques || FLO || align=right | 1.7 km || |-id=288 bgcolor=#fefefe | 91288 || || — || March 19, 1999 || Socorro || LINEAR || — || align=right | 4.4 km || |-id=289 bgcolor=#fefefe | 91289 || || — || March 19, 1999 || Socorro ||