| 13 km || |-id=646 bgcolor=#E9E9E9 | 52646 || 1997 YC || — || December 18, 1997 || Oizumi || T. Kobayashi || — || align=right | 6.4 km || |-id=647 bgcolor=#d6d6d6 | 52647 || || — || December 23, 1997 || Xinglong || SCAP || KOR || align=right | 4.5 km || |-id=648 bgcolor=#d6d6d6 | 52648 || || — || December 25, 1997 || Oizumi || T. Kobayashi || — || align=right | 5.7 km || |-id=649 bgcolor=#d6d6d6 | 52649 Chrismith || || || December 27, 1997 || Goodricke-Pigott || R. A. Tucker || EOS || align=right | 6.0 km || |-id=650 bgcolor=#d6d6d6 | 52650 || || — || December 28, 1997 || Kitt Peak || Spacewatch || — || align=right | 5.0 km || |-id=651 bgcolor=#d6d6d6 | 52651 || || — || December 27, 1997 || Xinglong || SCAP || — || align=right | 13 km || |-id=652 bgcolor=#E9E9E9 | 52652 || || — || December 31, 1997 || Kitt Peak || Spacewatch || — || align=right | 11 km || |-id=653 bgcolor=#d6d6d6 | 52653 || || — || January 3, 1998 || Xinglong || SCAP || — || align=right | 7.8 km || |-id=654 bgcolor=#d6d6d6 | 52654 || || — || January 8, 1998 || Caussols || ODAS || EOS || align=right | 6.7 km || |-id=655 bgcolor=#fefefe | 52655 || || — || January 8, 1998 || Caussols || ODAS || — || align=right | 3.0 km || |-id=656 bgcolor=#d6d6d6 | 52656 || || — || January 4, 1998 || Xinglong || SCAP || VER || align=right | 7.0 km || |-id=657 bgcolor=#d6d6d6 | 52657 || || — || January 5, 1998 || Oizumi || T. Kobayashi || ALA || align=right | 14 km || |-id=658 bgcolor=#E9E9E9 | 52658 || || — || January 22, 1998 || Kitt Peak || Spacewatch || — || align=right | 8.6 km || |-id=659 bgcolor=#E9E9E9 | 52659 || || — || January 19, 1998 || Uenohara || N. Kawasato || — || align=right | 3.7 km || |-id=660 bgcolor=#d6d6d6 | 52660 || || — || January 25, 1998 || Oizumi || T. Kobayashi || — || align=right | 7.7 km || |-id=661 bgcolor=#d6d6d6 | 52661 || || — || January 25, 1998 || Oizumi || T. Kobayashi || ALA || align=right | 12 km || |-id=662 bgcolor=#E9E9E9 | 52662 || || — || January 23, 1998 || Socorro || LINEAR