|| align=right | 4.0 km || |-id=210 bgcolor=#d6d6d6 | 401210 || || — || December 26, 2011 || Kitt Peak || Spacewatch || — || align=right | 3.7 km || |-id=211 bgcolor=#E9E9E9 | 401211 || || — || August 27, 2006 || Kitt Peak || Spacewatch || — || align=right | 1.1 km || |-id=212 bgcolor=#d6d6d6 | 401212 || || — || April 28, 2008 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 3.9 km || |-id=213 bgcolor=#E9E9E9 | 401213 || || — || January 12, 2008 || Kitt Peak || Spacewatch || — || align=right | 1.4 km || |-id=214 bgcolor=#d6d6d6 | 401214 || || — || July 2, 2010 || WISE || WISE || — || align=right | 4.9 km || |-id=215 bgcolor=#E9E9E9 | 401215 || || — || October 23, 2006 || Mount Lemmon || Mount Lemmon Survey || AGN || align=right | 1.2 km || |-id=216 bgcolor=#E9E9E9 | 401216 || || — || June 21, 2010 || WISE || WISE || — || align=right | 3.1 km || |-id=217 bgcolor=#d6d6d6 | 401217 || || — || February 16, 2007 || Catalina || CSS || — || align=right | 3.9 km || |-id=218 bgcolor=#fefefe | 401218 || || — || December 5, 2007 || Kitt Peak || Spacewatch || — || align=right | 1.3 km || |-id=219 bgcolor=#E9E9E9 | 401219 || || — || April 27, 2009 || Kitt Peak || Spacewatch || — || align=right | 1.9 km || |-id=220 bgcolor=#d6d6d6 | 401220 || || — || December 13, 2006 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 4.0 km || |-id=221 bgcolor=#d6d6d6 | 401221 || || — || November 12, 2010 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 3.4 km || |-id=222 bgcolor=#E9E9E9 | 401222 || || — || April 13, 2005 || Catalina || CSS || — || align=right | 1.5 km || |-id=223 bgcolor=#d6d6d6 | 401223 || || — || May 15, 2008 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 3.7 km || |-id=224 bgcolor=#E9E9E9 | 401224 || || — || June 26, 1997 || Kitt Peak || Spacewatch || — || align=right | 1.7 km || |-id=225 bgcolor=#E9E9E9 | 401225 || || — || August 29, 2006 || Anderson Mesa || LONEOS || — || align=right | 1.7 km || |-id=226 bgcolor=#fefefe | 401226