401001–401100 |-bgcolor=#fefefe | 401001 || || — || January 31, 2006 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.75" | 750 m || |-id=002 bgcolor=#fefefe | 401002 || || — || August 19, 2001 || Socorro || LINEAR || — || align=right data-sort-value="0.72" | 720 m || |-id=003 bgcolor=#fefefe | 401003 || || — || September 10, 2004 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.73" | 730 m || |-id=004 bgcolor=#fefefe | 401004 || || — || August 9, 2004 || Anderson Mesa || LONEOS || — || align=right data-sort-value="0.71" | 710 m || |-id=005 bgcolor=#fefefe | 401005 || || — || February 14, 2010 || Mount Lemmon || Mount Lemmon Survey || — || align=right data-sort-value="0.63" | 630 m || |-id=006 bgcolor=#E9E9E9 | 401006 || || — || October 4, 2003 || Kitt Peak || Spacewatch || — || align=right | 3.3 km || |-id=007 bgcolor=#fefefe | 401007 || || — || December 25, 2005 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.65" | 650 m || |-id=008 bgcolor=#fefefe | 401008 || || — || November 29, 2005 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.84" | 840 m || |-id=009 bgcolor=#FA8072 | 401009 || || — || September 20, 2001 || Socorro || LINEAR || — || align=right data-sort-value="0.71" | 710 m || |-id=010 bgcolor=#fefefe | 401010 || || — || November 17, 2001 || Socorro || LINEAR || — || align=right data-sort-value="0.64" | 640 m || |-id=011 bgcolor=#fefefe | 401011 || || — || August 16, 2001 || Socorro || LINEAR || — || align=right data-sort-value="0.67" | 670 m || |-id=012 bgcolor=#fefefe | 401012 || || — || September 20, 2001 || Socorro || LINEAR || — || align=right data-sort-value="0.61" | 610 m || |-id=013 bgcolor=#fefefe | 401013 || || — || November 18, 2008 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.92" | 920 m || |-id=014 bgcolor=#fefefe | 401014 || || — || June 16, 2010 || WISE || WISE || V || align=right | 2.6 km || |-id=015 bgcolor=#fefefe | 401015 || || — || March 13, 2010 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.83" | 830 m || |-id=016 bgcolor=#fefefe | 401016 || || — || December 30, 2008 || Mount Lemmon || Mount Lemmon Survey || — || align=right data-sort-value="0.88" | 880 m || |-id=017 bgcolor=#fefefe | 401017