— || May 13, 1999 || Socorro || LINEAR || TIR || align=right | 5.9 km || |-id=660 bgcolor=#d6d6d6 | 49660 || || — || May 13, 1999 || Socorro || LINEAR || EOS || align=right | 5.7 km || |-id=661 bgcolor=#d6d6d6 | 49661 || || — || May 8, 1999 || Socorro || LINEAR || — || align=right | 14 km || |-id=662 bgcolor=#d6d6d6 | 49662 || || — || May 17, 1999 || Kitt Peak || Spacewatch || URS || align=right | 14 km || |-id=663 bgcolor=#d6d6d6 | 49663 || || — || June 8, 1999 || Socorro || LINEAR || — || align=right | 13 km || |-id=664 bgcolor=#FA8072 | 49664 || 1999 MV || — || June 22, 1999 || Catalina || CSS || H || align=right | 2.1 km || |-id=665 bgcolor=#fefefe | 49665 || || — || July 12, 1999 || Socorro || LINEAR || H || align=right | 1.4 km || |-id=666 bgcolor=#fefefe | 49666 || || — || July 13, 1999 || Socorro || LINEAR || H || align=right | 1.8 km || |-id=667 bgcolor=#fefefe | 49667 || || — || July 22, 1999 || Socorro || LINEAR || H || align=right | 3.1 km || |-id=668 bgcolor=#fefefe | 49668 || || — || July 22, 1999 || Socorro || LINEAR || Hfast? || align=right | 1.9 km || |-id=669 bgcolor=#fefefe | 49669 || || — || September 8, 1999 || Socorro || LINEAR || H || align=right | 2.6 km || |-id=670 bgcolor=#fefefe | 49670 || || — || September 10, 1999 || Socorro || LINEAR || H || align=right | 1.5 km || |-id=671 bgcolor=#d6d6d6 | 49671 || || — || September 7, 1999 || Socorro || LINEAR || EOSslow || align=right | 11 km || |-id=672 bgcolor=#fefefe | 49672 || || — || September 8, 1999 || Socorro || LINEAR || V || align=right | 2.2 km || |-id=673 bgcolor=#C2E0FF | 49673 || || — || September 13, 1999 || Kitt Peak || D. Davis, B. Gladman, C. Neese || other TNOcritical || align=right | 128 km || |-id=674 bgcolor=#fefefe | 49674 || || — || September 30, 1999 || Socorro || LINEAR || H || align=right | 2.8 km || |-id=675 bgcolor=#fefefe | 49675 || || — || September 18, 1999 || Socorro || LINEAR || H || align=right | 1.9 km || |-id=676 bgcolor=#fefefe | 49676 ||