align=right | 2.5 km || |-id=421 bgcolor=#E9E9E9 | 401421 || || — || September 27, 2006 || Kitt Peak || Spacewatch || — || align=right | 1.1 km || |-id=422 bgcolor=#E9E9E9 | 401422 || || — || December 3, 2007 || Kitt Peak || Spacewatch || — || align=right | 2.1 km || |-id=423 bgcolor=#E9E9E9 | 401423 || || — || October 15, 2007 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.93" | 930 m || |-id=424 bgcolor=#E9E9E9 | 401424 || || — || January 31, 2009 || Mount Lemmon || Mount Lemmon Survey || MRX || align=right | 1.2 km || |-id=425 bgcolor=#E9E9E9 | 401425 || || — || October 3, 2006 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 3.0 km || |-id=426 bgcolor=#E9E9E9 | 401426 || || — || January 14, 2008 || Kitt Peak || Spacewatch || — || align=right | 2.2 km || |-id=427 bgcolor=#d6d6d6 | 401427 || || — || January 14, 2008 || Kitt Peak || Spacewatch || — || align=right | 2.5 km || |-id=428 bgcolor=#E9E9E9 | 401428 || || — || January 8, 2013 || Mount Lemmon || Mount Lemmon Survey || PAD || align=right | 1.7 km || |-id=429 bgcolor=#E9E9E9 | 401429 || || — || April 10, 2005 || Kitt Peak || Spacewatch || — || align=right | 1.7 km || |-id=430 bgcolor=#E9E9E9 | 401430 || || — || October 20, 2011 || Kitt Peak || Spacewatch || — || align=right | 2.4 km || |-id=431 bgcolor=#E9E9E9 | 401431 || || — || February 4, 2009 || Mount Lemmon || Mount Lemmon Survey || — || align=right data-sort-value="0.90" | 900 m || |-id=432 bgcolor=#fefefe | 401432 || || — || September 10, 2007 || Mount Lemmon || Mount Lemmon Survey || — || align=right data-sort-value="0.89" | 890 m || |-id=433 bgcolor=#d6d6d6 | 401433 || || — || March 4, 2008 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 2.7 km || |-id=434 bgcolor=#d6d6d6 | 401434 || || — || July 20, 1999 || Anderson Mesa || LONEOS || — || align=right | 2.7 km || |-id=435 bgcolor=#fefefe | 401435 || || — || May 11, 2010 || Mount Lemmon || Mount Lemmon Survey || V || align=right data-sort-value="0.61" | 610 m || |-id=436 bgcolor=#d6d6d6 | 401436 || || — || June 9, 2010 || WISE || WISE || —