|| — || February 12, 1999 || Socorro || LINEAR || — || align=right | 3.1 km || |-id=154 bgcolor=#E9E9E9 | 56154 || || — || February 11, 1999 || Socorro || LINEAR || EUN || align=right | 5.6 km || |-id=155 bgcolor=#fefefe | 56155 || || — || February 11, 1999 || Socorro || LINEAR || — || align=right | 6.9 km || |-id=156 bgcolor=#fefefe | 56156 || || — || February 11, 1999 || Socorro || LINEAR || — || align=right | 2.1 km || |-id=157 bgcolor=#fefefe | 56157 || || — || February 8, 1999 || Kitt Peak || Spacewatch || NYS || align=right | 3.1 km || |-id=158 bgcolor=#E9E9E9 | 56158 || || — || February 11, 1999 || Kitt Peak || Spacewatch || — || align=right | 2.3 km || |-id=159 bgcolor=#E9E9E9 | 56159 || || — || February 9, 1999 || Kitt Peak || Spacewatch || — || align=right | 4.4 km || |-id=160 bgcolor=#E9E9E9 | 56160 || || — || February 8, 1999 || Kitt Peak || Spacewatch || — || align=right | 8.7 km || |-id=161 bgcolor=#E9E9E9 | 56161 || || — || February 12, 1999 || Socorro || LINEAR || — || align=right | 6.8 km || |-id=162 bgcolor=#E9E9E9 | 56162 || || — || February 20, 1999 || Oohira || T. Urata || HNS || align=right | 3.5 km || |-id=163 bgcolor=#E9E9E9 | 56163 || || — || February 22, 1999 || Prescott || P. G. Comba || — || align=right | 1.9 km || |-id=164 bgcolor=#E9E9E9 | 56164 || || — || February 18, 1999 || Anderson Mesa || LONEOS || MAR || align=right | 3.4 km || |-id=165 bgcolor=#E9E9E9 | 56165 || || — || March 8, 1999 || Višnjan Observatory || K. Korlević || — || align=right | 6.9 km || |-id=166 bgcolor=#E9E9E9 | 56166 || || — || March 14, 1999 || Kitt Peak || Spacewatch || — || align=right | 2.5 km || |-id=167 bgcolor=#E9E9E9 | 56167 || || — || March 12, 1999 || Socorro || LINEAR || — || align=right | 4.4 km || |-id=168 bgcolor=#E9E9E9 | 56168 || || — || March 19, 1999 || Farra d'Isonzo || Farra d'Isonzo || — || align=right | 4.5 km || |-id=169 bgcolor=#fefefe | 56169 || || — || March 16, 1999 || Caussols || ODAS || V || align=right | 2.4 km || |-id=170