1999 || Catalina || CSS || V || align=right | 2.0 km || |-id=409 bgcolor=#fefefe | 40409 Taichikato || || || September 6, 1999 || Ceccano || G. Masi || NYS || align=right | 1.8 km || |-id=410 bgcolor=#d6d6d6 | 40410 Příhoda || || || September 4, 1999 || Ondřejov || L. Kotková || — || align=right | 6.2 km || |-id=411 bgcolor=#fefefe | 40411 || || — || September 6, 1999 || Gekko || T. Kagawa || FLO || align=right | 2.9 km || |-id=412 bgcolor=#E9E9E9 | 40412 || || — || September 4, 1999 || Kitt Peak || Spacewatch || — || align=right | 6.2 km || |-id=413 bgcolor=#fefefe | 40413 || || — || September 7, 1999 || Socorro || LINEAR || LCI || align=right | 5.2 km || |-id=414 bgcolor=#fefefe | 40414 || || — || September 7, 1999 || Socorro || LINEAR || MAS || align=right | 2.4 km || |-id=415 bgcolor=#fefefe | 40415 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 2.8 km || |-id=416 bgcolor=#fefefe | 40416 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 3.6 km || |-id=417 bgcolor=#E9E9E9 | 40417 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 10 km || |-id=418 bgcolor=#d6d6d6 | 40418 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 5.0 km || |-id=419 bgcolor=#E9E9E9 | 40419 || || — || September 7, 1999 || Socorro || LINEAR || AGN || align=right | 3.0 km || |-id=420 bgcolor=#E9E9E9 | 40420 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 3.9 km || |-id=421 bgcolor=#d6d6d6 | 40421 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 5.5 km || |-id=422 bgcolor=#fefefe | 40422 || || — || September 7, 1999 || Socorro || LINEAR || NYS || align=right | 2.2 km || |-id=423 bgcolor=#E9E9E9 | 40423 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 5.5 km || |-id=424 bgcolor=#fefefe | 40424 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 3.0 km || |-id=425 bgcolor=#E9E9E9 | 40425 || || — || September 7, 1999 || Socorro || LINEAR