10, 2011 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 2.6 km || |-id=304 bgcolor=#E9E9E9 | 463304 || || — || April 29, 2012 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.92" | 920 m || |-id=305 bgcolor=#d6d6d6 | 463305 || || — || April 28, 2012 || Mount Lemmon || Mount Lemmon Survey || EOS || align=right | 2.1 km || |-id=306 bgcolor=#E9E9E9 | 463306 || || — || March 14, 2007 || Kitt Peak || Spacewatch || — || align=right | 2.5 km || |-id=307 bgcolor=#E9E9E9 | 463307 || || — || October 25, 2005 || Kitt Peak || Spacewatch || — || align=right | 1.2 km || |-id=308 bgcolor=#E9E9E9 | 463308 || || — || October 1, 2005 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 1.4 km || |-id=309 bgcolor=#E9E9E9 | 463309 || || — || September 6, 2008 || Catalina || CSS || — || align=right | 2.9 km || |-id=310 bgcolor=#E9E9E9 | 463310 || || — || October 30, 2005 || Kitt Peak || Spacewatch || — || align=right | 1.5 km || |-id=311 bgcolor=#E9E9E9 | 463311 || || — || January 2, 2011 || Mount Lemmon || Mount Lemmon Survey || EUN || align=right | 1.3 km || |-id=312 bgcolor=#E9E9E9 | 463312 || || — || May 14, 2012 || Mount Lemmon || Mount Lemmon Survey || — || align=right data-sort-value="0.94" | 940 m || |-id=313 bgcolor=#d6d6d6 | 463313 || || — || December 20, 2009 || Catalina || CSS || — || align=right | 3.8 km || |-id=314 bgcolor=#E9E9E9 | 463314 || || — || April 28, 2012 || Mount Lemmon || Mount Lemmon Survey || GEF || align=right | 1.1 km || |-id=315 bgcolor=#E9E9E9 | 463315 || || — || December 27, 2006 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 1.2 km || |-id=316 bgcolor=#E9E9E9 | 463316 || || — || April 24, 2008 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.86" | 860 m || |-id=317 bgcolor=#E9E9E9 | 463317 || || — || September 15, 2009 || Kitt Peak || Spacewatch || — || align=right | 1.3 km || |-id=318 bgcolor=#E9E9E9 | 463318 || || — || March 23, 2003 || Apache Point || SDSS || — || align=right | 1.2 km || |-id=319 bgcolor=#E9E9E9 | 463319 || || — || October 25,