km || |-id=584 bgcolor=#d6d6d6 | 464584 || || — || February 6, 2011 || Catalina || CSS || — || align=right | 3.9 km || |-id=585 bgcolor=#fefefe | 464585 || || — || April 7, 2006 || Mount Lemmon || Mount Lemmon Survey || — || align=right data-sort-value="0.49" | 490 m || |-id=586 bgcolor=#E9E9E9 | 464586 || || — || July 5, 2000 || Kitt Peak || Spacewatch || — || align=right | 2.1 km || |-id=587 bgcolor=#d6d6d6 | 464587 || || — || September 12, 2002 || Palomar || NEAT || — || align=right | 3.3 km || |-id=588 bgcolor=#fefefe | 464588 || || — || June 8, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.0 km || |-id=589 bgcolor=#E9E9E9 | 464589 || || — || October 7, 2005 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 2.0 km || |-id=590 bgcolor=#E9E9E9 | 464590 || || — || November 18, 2006 || Mount Lemmon || Mount Lemmon Survey || — || align=right data-sort-value="0.86" | 860 m || |-id=591 bgcolor=#E9E9E9 | 464591 || || — || November 10, 2010 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 1.6 km || |-id=592 bgcolor=#E9E9E9 | 464592 || || — || March 12, 2008 || Kitt Peak || Spacewatch || — || align=right | 1.3 km || |-id=593 bgcolor=#d6d6d6 | 464593 || || — || January 12, 2010 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 3.3 km || |-id=594 bgcolor=#E9E9E9 | 464594 || || — || June 16, 2009 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 1.9 km || |-id=595 bgcolor=#d6d6d6 | 464595 || || — || October 8, 2008 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 2.8 km || |-id=596 bgcolor=#d6d6d6 | 464596 || || — || November 3, 2004 || Kitt Peak || Spacewatch || — || align=right | 2.1 km || |-id=597 bgcolor=#d6d6d6 | 464597 || || — || March 17, 2010 || WISE || WISE || — || align=right | 2.7 km || |-id=598 bgcolor=#d6d6d6 | 464598 || || — || February 24, 2006 || Kitt Peak || Spacewatch || — || align=right | 2.5 km || |-id=599 bgcolor=#E9E9E9 | 464599 || || — || November 21, 2005 || Kitt Peak || Spacewatch || — || align=right | 2.4 km || |-id=600