|| LINEAR || AGN || align=right | 6.5 km || |-id=687 bgcolor=#d6d6d6 | 18687 || || — || March 20, 1998 || Socorro || LINEAR || EOS || align=right | 5.4 km || |-id=688 bgcolor=#d6d6d6 | 18688 || || — || March 20, 1998 || Socorro || LINEAR || — || align=right | 7.3 km || |-id=689 bgcolor=#d6d6d6 | 18689 Rodrick || || || March 24, 1998 || Socorro || LINEAR || KOR || align=right | 5.3 km || |-id=690 bgcolor=#d6d6d6 | 18690 || || — || April 2, 1998 || Socorro || LINEAR || — || align=right | 13 km || |-id=691 bgcolor=#d6d6d6 | 18691 || || — || April 17, 1998 || Xinglong || SCAP || — || align=right | 5.6 km || |-id=692 bgcolor=#d6d6d6 | 18692 || || — || April 22, 1998 || Haleakala || NEAT || — || align=right | 6.5 km || |-id=693 bgcolor=#fefefe | 18693 || || — || April 29, 1998 || Haleakala || NEAT || — || align=right | 4.4 km || |-id=694 bgcolor=#E9E9E9 | 18694 || || — || April 23, 1998 || Višnjan Observatory || Višnjan Obs. || — || align=right | 8.7 km || |-id=695 bgcolor=#E9E9E9 | 18695 || || — || April 21, 1998 || Kitt Peak || Spacewatch || AGN || align=right | 4.6 km || |-id=696 bgcolor=#d6d6d6 | 18696 || || — || April 20, 1998 || Socorro || LINEAR || EOS || align=right | 6.3 km || |-id=697 bgcolor=#d6d6d6 | 18697 Kathanson || || || April 20, 1998 || Socorro || LINEAR || — || align=right | 5.4 km || |-id=698 bgcolor=#fefefe | 18698 Racharles || || || April 20, 1998 || Socorro || LINEAR || — || align=right | 2.5 km || |-id=699 bgcolor=#E9E9E9 | 18699 Quigley || || || April 20, 1998 || Socorro || LINEAR || slow || align=right | 7.2 km || |-id=700 bgcolor=#d6d6d6 | 18700 || || — || April 21, 1998 || Socorro || LINEAR || EOS || align=right | 6.5 km || |} 18701–18800 |-bgcolor=#d6d6d6 | 18701 || || — || April 21, 1998 || Socorro || LINEAR || — || align=right | 12 km || |-id=702 bgcolor=#E9E9E9 | 18702 Sadowski || || || April 21, 1998 || Socorro || LINEAR || — || align=right | 4.1 km || |-id=703 bgcolor=#d6d6d6 | 18703 || || — || April 21, 1998 || Socorro || LINEAR || HYG ||