|| |-id=421 bgcolor=#fefefe | 25421 Gafaran || || || November 5, 1999 || Socorro || LINEAR || — || align=right | 2.4 km || |-id=422 bgcolor=#fefefe | 25422 Abigreene || || || November 9, 1999 || Socorro || LINEAR || — || align=right | 2.6 km || |-id=423 bgcolor=#fefefe | 25423 || || — || November 9, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.7 km || |-id=424 bgcolor=#E9E9E9 | 25424 Gunasekaran || || || November 14, 1999 || Socorro || LINEAR || — || align=right | 2.6 km || |-id=425 bgcolor=#E9E9E9 | 25425 Chelsealynn || || || November 14, 1999 || Socorro || LINEAR || — || align=right | 2.6 km || |-id=426 bgcolor=#fefefe | 25426 Alexanderkim || || || November 14, 1999 || Socorro || LINEAR || — || align=right | 1.9 km || |-id=427 bgcolor=#fefefe | 25427 Kratchmarov || || || November 14, 1999 || Socorro || LINEAR || — || align=right | 4.6 km || |-id=428 bgcolor=#fefefe | 25428 Lakhanpal || || || November 14, 1999 || Socorro || LINEAR || — || align=right | 2.4 km || |-id=429 bgcolor=#fefefe | 25429 || || — || November 15, 1999 || Socorro || LINEAR || — || align=right | 2.9 km || |-id=430 bgcolor=#fefefe | 25430 Ericlarson || || || November 15, 1999 || Socorro || LINEAR || FLO || align=right | 3.3 km || |-id=431 bgcolor=#fefefe | 25431 || || — || November 2, 1999 || Catalina || CSS || — || align=right | 1.8 km || |-id=432 bgcolor=#fefefe | 25432 Josepherli || || || November 5, 1999 || Socorro || LINEAR || V || align=right | 1.5 km || |-id=433 bgcolor=#fefefe | 25433 || || — || November 26, 1999 || Višnjan Observatory || K. Korlević || — || align=right | 2.7 km || |-id=434 bgcolor=#fefefe | 25434 Westonia || || || November 29, 1999 || Kleť || M. Tichý || — || align=right | 2.2 km || |-id=435 bgcolor=#fefefe | 25435 || || — || November 28, 1999 || Oizumi || T. Kobayashi || — || align=right | 2.9 km || |-id=436 bgcolor=#fefefe | 25436 || || — || November 28, 1999 || Oizumi || T. Kobayashi || — || align=right | 4.4 km || |-id=437 bgcolor=#fefefe | 25437 || || — || November 28, 1999 || Oizumi || T. Kobayashi || V || align=right | 3.3 km || |-id=438