|| align=right | 1.4 km || |-id=273 bgcolor=#FA8072 | 164273 || || — || December 8, 2004 || Socorro || LINEAR || PHO || align=right | 2.4 km || |-id=274 bgcolor=#E9E9E9 | 164274 || || — || December 3, 2004 || Kitt Peak || Spacewatch || — || align=right | 1.7 km || |-id=275 bgcolor=#fefefe | 164275 || || — || December 8, 2004 || Socorro || LINEAR || MAS || align=right | 1.3 km || |-id=276 bgcolor=#fefefe | 164276 || || — || December 9, 2004 || Catalina || CSS || — || align=right | 1.2 km || |-id=277 bgcolor=#fefefe | 164277 || || — || December 10, 2004 || Campo Imperatore || CINEOS || V || align=right | 1.1 km || |-id=278 bgcolor=#fefefe | 164278 || || — || December 10, 2004 || Socorro || LINEAR || — || align=right | 1.6 km || |-id=279 bgcolor=#fefefe | 164279 || || — || December 9, 2004 || Catalina || CSS || V || align=right | 1.2 km || |-id=280 bgcolor=#fefefe | 164280 || || — || December 10, 2004 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.83" | 830 m || |-id=281 bgcolor=#fefefe | 164281 || || — || December 11, 2004 || Črni Vrh || Črni Vrh || — || align=right | 1.5 km || |-id=282 bgcolor=#fefefe | 164282 || || — || December 13, 2004 || Anderson Mesa || LONEOS || — || align=right | 1.5 km || |-id=283 bgcolor=#E9E9E9 | 164283 || || — || December 9, 2004 || Socorro || LINEAR || — || align=right | 2.0 km || |-id=284 bgcolor=#E9E9E9 | 164284 || || — || December 9, 2004 || Kitt Peak || Spacewatch || — || align=right | 2.1 km || |-id=285 bgcolor=#fefefe | 164285 || || — || December 11, 2004 || Kitt Peak || Spacewatch || — || align=right | 1.0 km || |-id=286 bgcolor=#fefefe | 164286 || || — || December 13, 2004 || Kitt Peak || Spacewatch || SUL || align=right | 3.2 km || |-id=287 bgcolor=#fefefe | 164287 || || — || December 9, 2004 || Catalina || CSS || — || align=right data-sort-value="0.88" | 880 m || |-id=288 bgcolor=#fefefe | 164288 || || — || December 11, 2004 || Socorro || LINEAR || — || align=right | 1.1 km || |-id=289 bgcolor=#d6d6d6 | 164289 || || — || December 11, 2004 || Kitt Peak ||