LINEAR || — || align=right | 2.7 km || |-id=395 bgcolor=#fefefe | 51395 || || — || February 19, 2001 || Socorro || LINEAR || MAS || align=right | 1.8 km || |-id=396 bgcolor=#fefefe | 51396 || || — || February 19, 2001 || Socorro || LINEAR || V || align=right | 1.6 km || |-id=397 bgcolor=#fefefe | 51397 || || — || February 19, 2001 || Socorro || LINEAR || — || align=right | 4.3 km || |-id=398 bgcolor=#fefefe | 51398 || || — || February 24, 2001 || Reedy Creek || J. Broughton || — || align=right | 2.6 km || |-id=399 bgcolor=#fefefe | 51399 || || — || February 26, 2001 || Oizumi || T. Kobayashi || V || align=right | 1.9 km || |-id=400 bgcolor=#fefefe | 51400 || || — || February 26, 2001 || Oizumi || T. Kobayashi || — || align=right | 4.9 km || |} 51401–51500 |-bgcolor=#fefefe | 51401 || || — || February 22, 2001 || Kitt Peak || Spacewatch || — || align=right | 1.2 km || |-id=402 bgcolor=#fefefe | 51402 || || — || February 20, 2001 || Kitt Peak || Spacewatch || — || align=right | 2.0 km || |-id=403 bgcolor=#fefefe | 51403 || || — || February 17, 2001 || Socorro || LINEAR || FLO || align=right | 1.6 km || |-id=404 bgcolor=#fefefe | 51404 || || — || February 17, 2001 || Socorro || LINEAR || NYS || align=right | 1.8 km || |-id=405 bgcolor=#C2FFFF | 51405 || || — || February 23, 2001 || Kitt Peak || Spacewatch || L4 || align=right | 14 km || |-id=406 bgcolor=#E9E9E9 | 51406 Massimocalvani || || || February 26, 2001 || Cima Ekar || ADAS || GER || align=right | 3.0 km || |-id=407 bgcolor=#fefefe | 51407 || || — || March 2, 2001 || Anderson Mesa || LONEOS || — || align=right | 2.0 km || |-id=408 bgcolor=#fefefe | 51408 || || — || March 2, 2001 || Anderson Mesa || LONEOS || NYS || align=right | 1.4 km || |-id=409 bgcolor=#E9E9E9 | 51409 || || — || March 2, 2001 || Anderson Mesa || LONEOS || — || align=right | 5.4 km || |-id=410 bgcolor=#fefefe | 51410 || || — || March 2, 2001 || Anderson Mesa || LONEOS || — || align=right | 1.5 km || |-id=411 bgcolor=#fefefe | 51411 || || — || March 2,