km || |-id=285 bgcolor=#d6d6d6 | 150285 || || — || October 2, 1999 || Socorro || LINEAR || — || align=right | 5.5 km || |-id=286 bgcolor=#E9E9E9 | 150286 || || — || October 2, 1999 || Socorro || LINEAR || — || align=right | 4.5 km || |-id=287 bgcolor=#d6d6d6 | 150287 || || — || October 4, 1999 || Socorro || LINEAR || — || align=right | 6.2 km || |-id=288 bgcolor=#d6d6d6 | 150288 || || — || October 4, 1999 || Socorro || LINEAR || — || align=right | 5.5 km || |-id=289 bgcolor=#d6d6d6 | 150289 || || — || October 7, 1999 || Socorro || LINEAR || HYG || align=right | 4.6 km || |-id=290 bgcolor=#d6d6d6 | 150290 || || — || October 7, 1999 || Socorro || LINEAR || VER || align=right | 6.5 km || |-id=291 bgcolor=#fefefe | 150291 || || — || October 7, 1999 || Socorro || LINEAR || — || align=right | 1.3 km || |-id=292 bgcolor=#fefefe | 150292 || || — || October 9, 1999 || Socorro || LINEAR || — || align=right | 1.2 km || |-id=293 bgcolor=#fefefe | 150293 || || — || October 10, 1999 || Socorro || LINEAR || — || align=right | 1.3 km || |-id=294 bgcolor=#d6d6d6 | 150294 || || — || October 10, 1999 || Socorro || LINEAR || HYG || align=right | 4.8 km || |-id=295 bgcolor=#d6d6d6 | 150295 || || — || October 12, 1999 || Socorro || LINEAR || — || align=right | 3.7 km || |-id=296 bgcolor=#d6d6d6 | 150296 || || — || October 13, 1999 || Socorro || LINEAR || — || align=right | 3.9 km || |-id=297 bgcolor=#d6d6d6 | 150297 || || — || October 15, 1999 || Socorro || LINEAR || CRO || align=right | 6.9 km || |-id=298 bgcolor=#d6d6d6 | 150298 || || — || October 15, 1999 || Socorro || LINEAR || EOS || align=right | 3.2 km || |-id=299 bgcolor=#d6d6d6 | 150299 || || — || October 15, 1999 || Socorro || LINEAR || — || align=right | 5.8 km || |-id=300 bgcolor=#d6d6d6 | 150300 || || — || October 3, 1999 || Kitt Peak || Spacewatch || — || align=right | 4.5 km || |} 150301–150400 |-bgcolor=#d6d6d6 | 150301 || || — || October 3, 1999 || Socorro || LINEAR || — || align=right | 5.0 km || |-id=302 bgcolor=#d6d6d6 | 150302 ||