December 31, 1997 || Oizumi || T. Kobayashi || — || align=right | 6.0 km || |-id=018 bgcolor=#d6d6d6 | 28018 || 1998 AG || — || January 4, 1998 || Xinglong || SCAP || — || align=right | 8.3 km || |-id=019 bgcolor=#fefefe | 28019 Warchal || || || January 14, 1998 || Ondřejov || L. Kotková || FLO || align=right | 1.9 km || |-id=020 bgcolor=#fefefe | 28020 || || — || January 22, 1998 || Kitt Peak || Spacewatch || V || align=right | 2.4 km || |-id=021 bgcolor=#d6d6d6 | 28021 || || — || January 22, 1998 || Bédoin || P. Antonini || — || align=right | 9.7 km || |-id=022 bgcolor=#d6d6d6 | 28022 || || — || January 25, 1998 || Haleakala || NEAT || VER || align=right | 14 km || |-id=023 bgcolor=#d6d6d6 | 28023 || || — || January 23, 1998 || Socorro || LINEAR || EOS || align=right | 5.9 km || |-id=024 bgcolor=#d6d6d6 | 28024 || || — || January 25, 1998 || Nachi-Katsuura || Y. Shimizu, T. Urata || EOS || align=right | 11 km || |-id=025 bgcolor=#E9E9E9 | 28025 || || — || January 25, 1998 || Haleakala || NEAT || — || align=right | 3.2 km || |-id=026 bgcolor=#E9E9E9 | 28026 || || — || February 6, 1998 || Xinglong || SCAP || NEM || align=right | 9.8 km || |-id=027 bgcolor=#fefefe | 28027 || || — || February 6, 1998 || La Silla || E. W. Elst || V || align=right | 2.5 km || |-id=028 bgcolor=#d6d6d6 | 28028 || || — || February 22, 1998 || Xinglong || SCAP || KOR || align=right | 5.7 km || |-id=029 bgcolor=#d6d6d6 | 28029 || || — || February 20, 1998 || Woomera || F. B. Zoltowski || 7:4 || align=right | 16 km || |-id=030 bgcolor=#d6d6d6 | 28030 || || — || February 26, 1998 || Kleť || Kleť Obs. || — || align=right | 8.4 km || |-id=031 bgcolor=#E9E9E9 | 28031 || || — || February 23, 1998 || Kitt Peak || Spacewatch || — || align=right | 3.7 km || |-id=032 bgcolor=#E9E9E9 | 28032 || || — || February 17, 1998 || Nachi-Katsuura || Y. Shimizu, T. Urata || — || align=right | 8.5 km || |-id=033 bgcolor=#d6d6d6 | 28033 || || — || March 5, 1998 || Xinglong || SCAP || EOS || align=right | 5.8