D'Abramo, A. Boattini || — || align=right | 4.8 km || |-id=422 bgcolor=#fefefe | 59422 || || — || April 12, 1999 || Woomera || F. B. Zoltowski || — || align=right | 4.0 km || |-id=423 bgcolor=#E9E9E9 | 59423 || || — || April 12, 1999 || Woomera || F. B. Zoltowski || — || align=right | 5.9 km || |-id=424 bgcolor=#E9E9E9 | 59424 || || — || April 10, 1999 || Višnjan Observatory || K. Korlević || — || align=right | 5.3 km || |-id=425 bgcolor=#fefefe | 59425 Xuyangsheng || || || April 7, 1999 || Xinglong || SCAP || MAS || align=right | 3.4 km || |-id=426 bgcolor=#fefefe | 59426 || || — || April 15, 1999 || Fountain Hills || C. W. Juels || NYS || align=right | 5.6 km || |-id=427 bgcolor=#fefefe | 59427 || || — || April 14, 1999 || Xinglong || SCAP || — || align=right | 2.4 km || |-id=428 bgcolor=#fefefe | 59428 || || — || April 7, 1999 || Anderson Mesa || LONEOS || NYS || align=right | 1.5 km || |-id=429 bgcolor=#E9E9E9 | 59429 || || — || April 9, 1999 || Anderson Mesa || LONEOS || — || align=right | 2.4 km || |-id=430 bgcolor=#d6d6d6 | 59430 || || — || April 12, 1999 || Kitt Peak || Spacewatch || — || align=right | 8.7 km || |-id=431 bgcolor=#E9E9E9 | 59431 || || — || April 12, 1999 || Kitt Peak || Spacewatch || — || align=right | 2.0 km || |-id=432 bgcolor=#E9E9E9 | 59432 || || — || April 14, 1999 || Kitt Peak || Spacewatch || — || align=right | 4.6 km || |-id=433 bgcolor=#fefefe | 59433 || || — || April 15, 1999 || Socorro || LINEAR || — || align=right | 2.2 km || |-id=434 bgcolor=#E9E9E9 | 59434 || || — || April 15, 1999 || Socorro || LINEAR || — || align=right | 6.7 km || |-id=435 bgcolor=#E9E9E9 | 59435 || || — || April 15, 1999 || Socorro || LINEAR || RAF || align=right | 2.9 km || |-id=436 bgcolor=#fefefe | 59436 || || — || April 15, 1999 || Socorro || LINEAR || CIM || align=right | 6.7 km || |-id=437 bgcolor=#E9E9E9 | 59437 || || — || April 7, 1999 || Socorro || LINEAR || — || align=right | 4.7 km || |-id=438 bgcolor=#E9E9E9 | 59438 || || —