91855 || || — || October 31, 1999 || Socorro || LINEAR || — || align=right | 7.2 km || |-id=856 bgcolor=#E9E9E9 | 91856 || || — || October 29, 1999 || Catalina || CSS || — || align=right | 7.0 km || |-id=857 bgcolor=#d6d6d6 | 91857 || || — || October 29, 1999 || Catalina || CSS || TIR || align=right | 5.4 km || |-id=858 bgcolor=#d6d6d6 | 91858 || || — || October 29, 1999 || Catalina || CSS || — || align=right | 5.8 km || |-id=859 bgcolor=#d6d6d6 | 91859 || || — || October 30, 1999 || Kitt Peak || Spacewatch || — || align=right | 4.8 km || |-id=860 bgcolor=#d6d6d6 | 91860 || || — || October 30, 1999 || Kitt Peak || Spacewatch || — || align=right | 4.5 km || |-id=861 bgcolor=#d6d6d6 | 91861 || || — || October 30, 1999 || Kitt Peak || Spacewatch || — || align=right | 7.7 km || |-id=862 bgcolor=#d6d6d6 | 91862 || || — || October 31, 1999 || Kitt Peak || Spacewatch || — || align=right | 4.0 km || |-id=863 bgcolor=#E9E9E9 | 91863 || || — || October 28, 1999 || Catalina || CSS || — || align=right | 3.7 km || |-id=864 bgcolor=#d6d6d6 | 91864 || || — || October 28, 1999 || Catalina || CSS || — || align=right | 12 km || |-id=865 bgcolor=#d6d6d6 | 91865 || || — || October 28, 1999 || Catalina || CSS || — || align=right | 7.6 km || |-id=866 bgcolor=#E9E9E9 | 91866 || || — || October 30, 1999 || Kitt Peak || Spacewatch || — || align=right | 5.7 km || |-id=867 bgcolor=#d6d6d6 | 91867 || || — || October 31, 1999 || Kitt Peak || Spacewatch || — || align=right | 3.7 km || |-id=868 bgcolor=#E9E9E9 | 91868 || || — || October 16, 1999 || Kitt Peak || Spacewatch || — || align=right | 5.6 km || |-id=869 bgcolor=#d6d6d6 | 91869 || || — || October 29, 1999 || Anderson Mesa || LONEOS || — || align=right | 10 km || |-id=870 bgcolor=#d6d6d6 | 91870 || || — || October 29, 1999 || Anderson Mesa || LONEOS || — || align=right | 5.1 km || |-id=871 bgcolor=#d6d6d6 | 91871 || || — || October 31, 1999 || Kitt Peak || Spacewatch || — || align=right | 6.5 km || |-id=872 bgcolor=#d6d6d6