40973 || || — || October 3, 1999 || Socorro || LINEAR || EOS || align=right | 4.0 km || |-id=974 bgcolor=#d6d6d6 | 40974 || || — || October 3, 1999 || Socorro || LINEAR || — || align=right | 7.5 km || |-id=975 bgcolor=#d6d6d6 | 40975 || || — || October 3, 1999 || Socorro || LINEAR || — || align=right | 4.6 km || |-id=976 bgcolor=#d6d6d6 | 40976 || || — || October 3, 1999 || Socorro || LINEAR || LIX || align=right | 12 km || |-id=977 bgcolor=#d6d6d6 | 40977 || || — || October 7, 1999 || Socorro || LINEAR || EOS || align=right | 4.3 km || |-id=978 bgcolor=#E9E9E9 | 40978 || || — || October 7, 1999 || Socorro || LINEAR || HNS || align=right | 2.7 km || |-id=979 bgcolor=#E9E9E9 | 40979 || || — || October 8, 1999 || Socorro || LINEAR || — || align=right | 3.1 km || |-id=980 bgcolor=#d6d6d6 | 40980 || || — || October 9, 1999 || Socorro || LINEAR || — || align=right | 4.8 km || |-id=981 bgcolor=#E9E9E9 | 40981 Stephenholland || || || October 9, 1999 || Socorro || LINEAR || — || align=right | 5.6 km || |-id=982 bgcolor=#d6d6d6 | 40982 || || — || October 10, 1999 || Socorro || LINEAR || — || align=right | 4.3 km || |-id=983 bgcolor=#E9E9E9 | 40983 || || — || October 10, 1999 || Socorro || LINEAR || MAR || align=right | 2.9 km || |-id=984 bgcolor=#d6d6d6 | 40984 || || — || October 10, 1999 || Socorro || LINEAR || EOS || align=right | 4.8 km || |-id=985 bgcolor=#d6d6d6 | 40985 || || — || October 10, 1999 || Socorro || LINEAR || THM || align=right | 8.0 km || |-id=986 bgcolor=#d6d6d6 | 40986 || || — || October 12, 1999 || Socorro || LINEAR || — || align=right | 3.6 km || |-id=987 bgcolor=#d6d6d6 | 40987 || || — || October 12, 1999 || Socorro || LINEAR || EOS || align=right | 4.9 km || |-id=988 bgcolor=#d6d6d6 | 40988 || || — || October 7, 1999 || Catalina || CSS || — || align=right | 6.4 km || |-id=989 bgcolor=#d6d6d6 | 40989 || 1999 UO || — || October 16, 1999 || Višnjan Observatory || K. Korlević || — || align=right | 6.1 km || |-id=990 bgcolor=#E9E9E9 | 40990 || 1999 UW ||