Spacewatch || — || align=right | 7.1 km || |-id=290 bgcolor=#fefefe | 164290 || || — || December 11, 2004 || Socorro || LINEAR || — || align=right | 1.3 km || |-id=291 bgcolor=#fefefe | 164291 || || — || December 11, 2004 || Socorro || LINEAR || V || align=right | 1.3 km || |-id=292 bgcolor=#fefefe | 164292 || || — || December 14, 2004 || Catalina || CSS || — || align=right | 1.2 km || |-id=293 bgcolor=#E9E9E9 | 164293 || || — || December 10, 2004 || Socorro || LINEAR || HNS || align=right | 2.3 km || |-id=294 bgcolor=#FFC2E0 | 164294 || || — || December 13, 2004 || Mauna Kea || D. J. Tholen || ATIcritical || align=right data-sort-value="0.30" | 300 m || |-id=295 bgcolor=#d6d6d6 | 164295 || || — || December 9, 2004 || Catalina || CSS || Tj (2.71) || align=right | 11 km || |-id=296 bgcolor=#fefefe | 164296 || || — || December 11, 2004 || Kitt Peak || Spacewatch || FLO || align=right | 1.3 km || |-id=297 bgcolor=#fefefe | 164297 || || — || December 13, 2004 || Kitt Peak || Spacewatch || — || align=right | 1.3 km || |-id=298 bgcolor=#fefefe | 164298 || || — || December 15, 2004 || Socorro || LINEAR || NYS || align=right | 1.3 km || |-id=299 bgcolor=#E9E9E9 | 164299 || || — || December 15, 2004 || Socorro || LINEAR || — || align=right | 2.1 km || |-id=300 bgcolor=#E9E9E9 | 164300 || || — || December 18, 2004 || Mount Lemmon || Mount Lemmon Survey || HEN || align=right | 1.7 km || |} 164301–164400 |-bgcolor=#fefefe | 164301 || || — || December 18, 2004 || Mount Lemmon || Mount Lemmon Survey || MAS || align=right | 1.1 km || |-id=302 bgcolor=#fefefe | 164302 || || — || December 18, 2004 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 1.3 km || |-id=303 bgcolor=#fefefe | 164303 || || — || December 18, 2004 || Mount Lemmon || Mount Lemmon Survey || NYS || align=right | 1.1 km || |-id=304 bgcolor=#fefefe | 164304 || || — || January 6, 2005 || Catalina || CSS || — || align=right | 1.7 km || |-id=305 bgcolor=#fefefe | 164305 || || — || January 6, 2005 || Catalina || CSS || SUL || align=right | 3.7 km || |-id=306 bgcolor=#fefefe |