|| || — || February 20, 2009 || Kitt Peak || Spacewatch || — || align=right | 2.8 km || |-id=503 bgcolor=#fefefe | 392503 || || — || October 9, 2004 || Kitt Peak || Spacewatch || MAS || align=right data-sort-value="0.73" | 730 m || |-id=504 bgcolor=#fefefe | 392504 || || — || February 4, 2006 || Kitt Peak || Spacewatch || NYS || align=right data-sort-value="0.80" | 800 m || |-id=505 bgcolor=#fefefe | 392505 || || — || October 6, 2008 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 1.1 km || |-id=506 bgcolor=#d6d6d6 | 392506 || || — || September 11, 2006 || Catalina || CSS || — || align=right | 3.8 km || |-id=507 bgcolor=#fefefe | 392507 || || — || September 10, 2004 || Socorro || LINEAR || — || align=right data-sort-value="0.79" | 790 m || |-id=508 bgcolor=#fefefe | 392508 || || — || March 13, 2010 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 1.1 km || |-id=509 bgcolor=#E9E9E9 | 392509 || || — || January 14, 2010 || WISE || WISE || — || align=right | 3.2 km || |-id=510 bgcolor=#fefefe | 392510 || || — || July 3, 2011 || Catalina || CSS || V || align=right data-sort-value="0.88" | 880 m || |-id=511 bgcolor=#fefefe | 392511 || || — || April 20, 2007 || Kitt Peak || Spacewatch || NYS || align=right data-sort-value="0.69" | 690 m || |-id=512 bgcolor=#d6d6d6 | 392512 || || — || August 21, 2006 || Kitt Peak || Spacewatch || CHA || align=right | 2.1 km || |-id=513 bgcolor=#E9E9E9 | 392513 || || — || October 1, 2003 || Kitt Peak || Spacewatch || RAF || align=right data-sort-value="0.84" | 840 m || |-id=514 bgcolor=#E9E9E9 | 392514 || || — || November 5, 2007 || Kitt Peak || Spacewatch || HOF || align=right | 2.6 km || |-id=515 bgcolor=#fefefe | 392515 || || — || May 1, 2003 || Kitt Peak || Spacewatch || NYS || align=right data-sort-value="0.71" | 710 m || |-id=516 bgcolor=#fefefe | 392516 || || — || October 1, 2000 || Socorro || LINEAR || NYS || align=right data-sort-value="0.81" | 810 m || |-id=517 bgcolor=#E9E9E9 | 392517 || || — || May 26, 2006 || Kitt Peak || Spacewatch || HNS || align=right | 1.4 km || |-id=518 bgcolor=#E9E9E9 | 392518 || || — || October 19, 2007 || Kitt