| 50243 || || — || January 29, 2000 || Kitt Peak || Spacewatch || MIS || align=right | 6.7 km || |-id=244 bgcolor=#fefefe | 50244 || || — || January 28, 2000 || Kitt Peak || Spacewatch || MAS || align=right | 2.2 km || |-id=245 bgcolor=#fefefe | 50245 || || — || January 28, 2000 || Oizumi || T. Kobayashi || — || align=right | 2.6 km || |-id=246 bgcolor=#E9E9E9 | 50246 || || — || January 28, 2000 || Oizumi || T. Kobayashi || — || align=right | 13 km || |-id=247 bgcolor=#E9E9E9 | 50247 || || — || January 31, 2000 || Oizumi || T. Kobayashi || — || align=right | 9.2 km || |-id=248 bgcolor=#fefefe | 50248 || || — || January 29, 2000 || Socorro || LINEAR || V || align=right | 1.8 km || |-id=249 bgcolor=#E9E9E9 | 50249 || || — || January 30, 2000 || Socorro || LINEAR || EUN || align=right | 2.6 km || |-id=250 bgcolor=#E9E9E9 | 50250 Daveharrington || || || January 30, 2000 || Catalina || CSS || — || align=right | 3.7 km || |-id=251 bgcolor=#E9E9E9 | 50251 Iorg || || || January 30, 2000 || Catalina || CSS || — || align=right | 4.5 km || |-id=252 bgcolor=#fefefe | 50252 || || — || January 30, 2000 || Catalina || CSS || FLO || align=right | 1.6 km || |-id=253 bgcolor=#E9E9E9 | 50253 || || — || January 29, 2000 || Socorro || LINEAR || MAR || align=right | 3.8 km || |-id=254 bgcolor=#fefefe | 50254 || || — || January 30, 2000 || Socorro || LINEAR || — || align=right | 2.2 km || |-id=255 bgcolor=#E9E9E9 | 50255 || || — || January 30, 2000 || Socorro || LINEAR || — || align=right | 3.3 km || |-id=256 bgcolor=#fefefe | 50256 || || — || January 30, 2000 || Socorro || LINEAR || — || align=right | 2.0 km || |-id=257 bgcolor=#fefefe | 50257 || || — || January 30, 2000 || Socorro || LINEAR || NYS || align=right | 1.8 km || |-id=258 bgcolor=#E9E9E9 | 50258 || || — || January 30, 2000 || Socorro || LINEAR || — || align=right | 4.1 km || |-id=259 bgcolor=#E9E9E9 | 50259 || || — || January 30, 2000 || Socorro || LINEAR || — || align=right | 4.1 km || |-id=260 bgcolor=#fefefe | 50260 || ||