September 9, 1999 || Socorro || LINEAR || — || align=right | 4.0 km || |-id=684 bgcolor=#E9E9E9 | 40684 Vanhoeck || || || September 8, 1999 || Uccle || T. Pauwels || AGN || align=right | 2.5 km || |-id=685 bgcolor=#fefefe | 40685 || || — || September 3, 1999 || Anderson Mesa || LONEOS || — || align=right | 2.7 km || |-id=686 bgcolor=#E9E9E9 | 40686 || || — || September 4, 1999 || Anderson Mesa || LONEOS || — || align=right | 6.6 km || |-id=687 bgcolor=#E9E9E9 | 40687 || || — || September 5, 1999 || Catalina || CSS || — || align=right | 4.1 km || |-id=688 bgcolor=#d6d6d6 | 40688 || || — || September 7, 1999 || Socorro || LINEAR || TEL || align=right | 5.0 km || |-id=689 bgcolor=#E9E9E9 | 40689 || || — || September 7, 1999 || Anderson Mesa || LONEOS || ADE || align=right | 6.2 km || |-id=690 bgcolor=#E9E9E9 | 40690 || || — || September 4, 1999 || Catalina || CSS || — || align=right | 2.8 km || |-id=691 bgcolor=#fefefe | 40691 || || — || September 5, 1999 || Catalina || CSS || — || align=right | 3.5 km || |-id=692 bgcolor=#fefefe | 40692 || || — || September 8, 1999 || Catalina || CSS || V || align=right | 3.4 km || |-id=693 bgcolor=#fefefe | 40693 || || — || September 8, 1999 || Catalina || CSS || V || align=right | 2.0 km || |-id=694 bgcolor=#fefefe | 40694 || || — || September 8, 1999 || Catalina || CSS || — || align=right | 4.5 km || |-id=695 bgcolor=#E9E9E9 | 40695 || || — || September 8, 1999 || Catalina || CSS || — || align=right | 2.9 km || |-id=696 bgcolor=#E9E9E9 | 40696 || || — || September 9, 1999 || Anderson Mesa || LONEOS || — || align=right | 3.2 km || |-id=697 bgcolor=#fefefe | 40697 || || — || September 9, 1999 || Anderson Mesa || LONEOS || V || align=right | 3.0 km || |-id=698 bgcolor=#fefefe | 40698 || || — || September 8, 1999 || Catalina || CSS || FLO || align=right | 2.3 km || |-id=699 bgcolor=#E9E9E9 | 40699 || || — || September 8, 1999 || Catalina || CSS || — || align=right | 3.9 km || |-id=700 bgcolor=#fefefe | 40700 || || — || September 8, 1999