8, 1999 || Catalina || CSS || — || align=right | 7.7 km || |-id=291 bgcolor=#E9E9E9 | 56291 || || — || July 13, 1999 || Socorro || LINEAR || — || align=right | 4.1 km || |-id=292 bgcolor=#fefefe | 56292 || || — || July 14, 1999 || Socorro || LINEAR || — || align=right | 3.3 km || |-id=293 bgcolor=#E9E9E9 | 56293 || || — || July 13, 1999 || Socorro || LINEAR || — || align=right | 4.6 km || |-id=294 bgcolor=#d6d6d6 | 56294 || || — || July 13, 1999 || Socorro || LINEAR || — || align=right | 5.8 km || |-id=295 bgcolor=#fefefe | 56295 || || — || July 12, 1999 || Socorro || LINEAR || — || align=right | 2.9 km || |-id=296 bgcolor=#fefefe | 56296 || || — || September 7, 1999 || Catalina || CSS || — || align=right | 2.8 km || |-id=297 bgcolor=#d6d6d6 | 56297 || || — || September 12, 1999 || Črni Vrh || Črni Vrh || LUT || align=right | 13 km || |-id=298 bgcolor=#d6d6d6 | 56298 || || — || September 7, 1999 || Socorro || LINEAR || TIR || align=right | 8.6 km || |-id=299 bgcolor=#d6d6d6 | 56299 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 11 km || |-id=300 bgcolor=#d6d6d6 | 56300 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 6.9 km || |} 56301–56400 |-bgcolor=#d6d6d6 | 56301 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 8.7 km || |-id=302 bgcolor=#E9E9E9 | 56302 || || — || September 7, 1999 || Socorro || LINEAR || HEN || align=right | 2.2 km || |-id=303 bgcolor=#d6d6d6 | 56303 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 10 km || |-id=304 bgcolor=#d6d6d6 | 56304 || || — || September 9, 1999 || Socorro || LINEAR || AEG || align=right | 11 km || |-id=305 bgcolor=#d6d6d6 | 56305 || || — || September 9, 1999 || Socorro || LINEAR || — || align=right | 8.0 km || |-id=306 bgcolor=#d6d6d6 | 56306 || || — || September 9, 1999 || Socorro || LINEAR || URS || align=right | 11 km || |-id=307 bgcolor=#d6d6d6 | 56307 || || — || September 9, 1999 || Socorro || LINEAR