4.0 km || |-id=823 bgcolor=#fefefe | 21823 || || — || October 9, 1999 || Kitt Peak || Spacewatch || NYS || align=right | 2.8 km || |-id=824 bgcolor=#E9E9E9 | 21824 || || — || October 10, 1999 || Kitt Peak || Spacewatch || — || align=right | 2.9 km || |-id=825 bgcolor=#fefefe | 21825 Zhangyizhong || || || October 2, 1999 || Socorro || LINEAR || — || align=right | 5.8 km || |-id=826 bgcolor=#fefefe | 21826 Youjiazhong || || || October 2, 1999 || Socorro || LINEAR || — || align=right | 2.4 km || |-id=827 bgcolor=#fefefe | 21827 Chingzhu || || || October 2, 1999 || Socorro || LINEAR || — || align=right | 2.9 km || |-id=828 bgcolor=#d6d6d6 | 21828 || || — || October 2, 1999 || Socorro || LINEAR || — || align=right | 8.2 km || |-id=829 bgcolor=#fefefe | 21829 Kaylacornale || || || October 2, 1999 || Socorro || LINEAR || FLO || align=right | 2.8 km || |-id=830 bgcolor=#d6d6d6 | 21830 || || — || October 2, 1999 || Socorro || LINEAR || — || align=right | 6.5 km || |-id=831 bgcolor=#E9E9E9 | 21831 || || — || October 2, 1999 || Socorro || LINEAR || — || align=right | 14 km || |-id=832 bgcolor=#E9E9E9 | 21832 || || — || October 2, 1999 || Socorro || LINEAR || — || align=right | 2.8 km || |-id=833 bgcolor=#fefefe | 21833 || || — || October 2, 1999 || Socorro || LINEAR || V || align=right | 2.0 km || |-id=834 bgcolor=#fefefe | 21834 || || — || October 2, 1999 || Socorro || LINEAR || FLO || align=right | 2.4 km || |-id=835 bgcolor=#d6d6d6 | 21835 || || — || October 2, 1999 || Socorro || LINEAR || HYG || align=right | 9.5 km || |-id=836 bgcolor=#d6d6d6 | 21836 || || — || October 2, 1999 || Socorro || LINEAR || EOS || align=right | 7.9 km || |-id=837 bgcolor=#fefefe | 21837 || || — || October 2, 1999 || Socorro || LINEAR || V || align=right | 2.6 km || |-id=838 bgcolor=#E9E9E9 | 21838 || || — || October 2, 1999 || Socorro || LINEAR || GEF || align=right | 4.0 km || |-id=839 bgcolor=#d6d6d6 | 21839 || || — || October 2, 1999 || Socorro || LINEAR || KOR || align=right | 4.5 km || |-id=840 bgcolor=#fefefe | 21840