data-sort-value="0.80" | 800 m || |-id=498 bgcolor=#d6d6d6 | 460498 || || — || November 10, 2009 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 2.3 km || |-id=499 bgcolor=#E9E9E9 | 460499 || || — || November 8, 2010 || Kitt Peak || Spacewatch || — || align=right | 1.3 km || |-id=500 bgcolor=#d6d6d6 | 460500 || || — || October 3, 2008 || Mount Lemmon || Mount Lemmon Survey || 7:4 || align=right | 3.8 km || |} 460501–460600 |-bgcolor=#E9E9E9 | 460501 || || — || September 20, 2000 || Kitt Peak || Spacewatch || HOF || align=right | 3.2 km || |-id=502 bgcolor=#d6d6d6 | 460502 || || — || March 1, 2010 || WISE || WISE || — || align=right | 3.3 km || |-id=503 bgcolor=#d6d6d6 | 460503 || || — || September 5, 2008 || Kitt Peak || Spacewatch || — || align=right | 2.8 km || |-id=504 bgcolor=#d6d6d6 | 460504 || || — || March 27, 2010 || WISE || WISE || — || align=right | 3.1 km || |-id=505 bgcolor=#E9E9E9 | 460505 || || — || May 27, 2008 || Kitt Peak || Spacewatch || AGN || align=right | 1.1 km || |-id=506 bgcolor=#E9E9E9 | 460506 || || — || January 10, 1997 || Kitt Peak || Spacewatch || — || align=right | 2.4 km || |-id=507 bgcolor=#d6d6d6 | 460507 || || — || April 12, 2010 || WISE || WISE || — || align=right | 3.1 km || |-id=508 bgcolor=#d6d6d6 | 460508 || || — || September 28, 2003 || Kitt Peak || Spacewatch || — || align=right | 3.0 km || |-id=509 bgcolor=#d6d6d6 | 460509 || || — || October 27, 2009 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 4.2 km || |-id=510 bgcolor=#d6d6d6 | 460510 || || — || December 22, 2005 || Kitt Peak || Spacewatch || — || align=right | 2.3 km || |-id=511 bgcolor=#d6d6d6 | 460511 || || — || January 5, 2011 || Catalina || CSS || — || align=right | 3.3 km || |-id=512 bgcolor=#E9E9E9 | 460512 || || — || October 17, 2010 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 1.1 km || |-id=513 bgcolor=#E9E9E9 | 460513 || || — || November 27, 2010 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 2.4 km || |-id=514 bgcolor=#d6d6d6 | 460514