21, 1998 || Caussols || ODAS || — || align=right data-sort-value="0.84" | 840 m || |-id=828 bgcolor=#d6d6d6 | 401828 || || — || September 20, 1998 || Kitt Peak || Spacewatch || EOS || align=right | 2.0 km || |-id=829 bgcolor=#E9E9E9 | 401829 || || — || September 20, 1998 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.71" | 710 m || |-id=830 bgcolor=#d6d6d6 | 401830 || || — || September 26, 1998 || Socorro || LINEAR || — || align=right | 3.3 km || |-id=831 bgcolor=#d6d6d6 | 401831 || || — || September 25, 1998 || Kitt Peak || Spacewatch || — || align=right | 3.4 km || |-id=832 bgcolor=#E9E9E9 | 401832 || || — || October 13, 1998 || Kitt Peak || Spacewatch || (5) || align=right data-sort-value="0.84" | 840 m || |-id=833 bgcolor=#d6d6d6 | 401833 || || — || November 19, 1998 || Kitt Peak || Spacewatch || — || align=right | 3.0 km || |-id=834 bgcolor=#fefefe | 401834 || || — || October 10, 1999 || Socorro || LINEAR || V || align=right data-sort-value="0.87" | 870 m || |-id=835 bgcolor=#fefefe | 401835 || || — || October 9, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.1 km || |-id=836 bgcolor=#d6d6d6 | 401836 || || — || October 1, 1999 || Catalina || CSS || SHU3:2 || align=right | 6.4 km || |-id=837 bgcolor=#d6d6d6 | 401837 || || — || October 31, 1999 || Kitt Peak || Spacewatch || — || align=right | 2.2 km || |-id=838 bgcolor=#d6d6d6 | 401838 || || — || October 31, 1999 || Kitt Peak || Spacewatch || — || align=right | 3.4 km || |-id=839 bgcolor=#d6d6d6 | 401839 || || — || October 19, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.7 km || |-id=840 bgcolor=#FA8072 | 401840 || || — || October 20, 1999 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.78" | 780 m || |-id=841 bgcolor=#fefefe | 401841 || || — || November 5, 1999 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.70" | 700 m || |-id=842 bgcolor=#fefefe | 401842 || || — || November 6, 1999 || Kitt Peak || Spacewatch || — || align=right data-sort-value="0.73" | 730 m || |-id=843 bgcolor=#d6d6d6 | 401843 || || — || November 4, 1999 || Socorro || LINEAR || criticalTj (2.97) || align=right | 3.4