|| — || align=right | 6.2 km || |-id=181 bgcolor=#d6d6d6 | 31181 || || — || December 22, 1997 || Xinglong || SCAP || — || align=right | 4.4 km || |-id=182 bgcolor=#fefefe | 31182 || || — || December 22, 1997 || Xinglong || SCAP || Hslow || align=right | 1.9 km || |-id=183 bgcolor=#fefefe | 31183 || || — || December 25, 1997 || Haleakala || NEAT || — || align=right | 2.1 km || |-id=184 bgcolor=#E9E9E9 | 31184 || || — || December 26, 1997 || Sudbury || D. di Cicco || — || align=right | 2.9 km || |-id=185 bgcolor=#E9E9E9 | 31185 || || — || December 25, 1997 || Oizumi || T. Kobayashi || — || align=right | 8.0 km || |-id=186 bgcolor=#E9E9E9 | 31186 || || — || December 25, 1997 || Oizumi || T. Kobayashi || — || align=right | 4.2 km || |-id=187 bgcolor=#E9E9E9 | 31187 || || — || December 27, 1997 || Oizumi || T. Kobayashi || ADE || align=right | 8.1 km || |-id=188 bgcolor=#E9E9E9 | 31188 || || — || December 27, 1997 || Oizumi || T. Kobayashi || GEF || align=right | 3.7 km || |-id=189 bgcolor=#E9E9E9 | 31189 Tricomi || || || December 27, 1997 || Prescott || P. G. Comba || — || align=right | 3.1 km || |-id=190 bgcolor=#E9E9E9 | 31190 Toussaint || || || December 27, 1997 || Goodricke-Pigott || R. A. Tucker || MAR || align=right | 4.5 km || |-id=191 bgcolor=#E9E9E9 | 31191 || || — || December 28, 1997 || Kitt Peak || Spacewatch || — || align=right | 5.3 km || |-id=192 bgcolor=#E9E9E9 | 31192 Aigoual || || || December 29, 1997 || Pises || Pises Obs. || XIZ || align=right | 6.0 km || |-id=193 bgcolor=#E9E9E9 | 31193 || || — || December 31, 1997 || Nachi-Katsuura || Y. Shimizu, T. Urata || — || align=right | 5.1 km || |-id=194 bgcolor=#E9E9E9 | 31194 || || — || December 24, 1997 || Xinglong || SCAP || — || align=right | 4.6 km || |-id=195 bgcolor=#d6d6d6 | 31195 || || — || December 29, 1997 || Xinglong || SCAP || TEL || align=right | 4.1 km || |-id=196 bgcolor=#E9E9E9 | 31196 Yulong || || || December 24, 1997 || Xinglong || Xinglong Stn. || — || align=right | 5.7 km || |-id=197 bgcolor=#fefefe | 31197 || || — ||