|| align=right | 1.7 km || |-id=255 bgcolor=#fefefe | 47255 || || — || November 4, 1999 || Socorro || LINEAR || NYS || align=right | 4.1 km || |-id=256 bgcolor=#d6d6d6 | 47256 || || — || November 11, 1999 || Xinglong || SCAP || — || align=right | 4.2 km || |-id=257 bgcolor=#fefefe | 47257 || || — || November 4, 1999 || Socorro || LINEAR || — || align=right | 2.8 km || |-id=258 bgcolor=#fefefe | 47258 || || — || November 4, 1999 || Socorro || LINEAR || — || align=right | 2.1 km || |-id=259 bgcolor=#E9E9E9 | 47259 || || — || November 4, 1999 || Socorro || LINEAR || — || align=right | 6.4 km || |-id=260 bgcolor=#fefefe | 47260 || || — || November 4, 1999 || Socorro || LINEAR || — || align=right | 1.7 km || |-id=261 bgcolor=#fefefe | 47261 || || — || November 5, 1999 || Socorro || LINEAR || — || align=right | 2.0 km || |-id=262 bgcolor=#fefefe | 47262 || || — || November 5, 1999 || Socorro || LINEAR || — || align=right | 1.7 km || |-id=263 bgcolor=#fefefe | 47263 || || — || November 9, 1999 || Socorro || LINEAR || — || align=right | 1.9 km || |-id=264 bgcolor=#fefefe | 47264 || || — || November 9, 1999 || Socorro || LINEAR || — || align=right | 2.2 km || |-id=265 bgcolor=#fefefe | 47265 || || — || November 9, 1999 || Socorro || LINEAR || — || align=right | 1.8 km || |-id=266 bgcolor=#fefefe | 47266 || || — || November 9, 1999 || Socorro || LINEAR || NYS || align=right | 2.1 km || |-id=267 bgcolor=#fefefe | 47267 || || — || November 9, 1999 || Socorro || LINEAR || MAS || align=right | 2.0 km || |-id=268 bgcolor=#fefefe | 47268 || || — || November 3, 1999 || Kitt Peak || Spacewatch || ERI || align=right | 3.9 km || |-id=269 bgcolor=#fefefe | 47269 || || — || November 13, 1999 || Anderson Mesa || LONEOS || FLO || align=right | 4.1 km || |-id=270 bgcolor=#d6d6d6 | 47270 || || — || November 12, 1999 || Socorro || LINEAR || — || align=right | 4.6 km || |-id=271 bgcolor=#fefefe | 47271 || || — || November 11, 1999 || Catalina || CSS || V || align=right | 2.6 km || |-id=272