|| September 8, 1999 || Socorro || LINEAR || HYG || align=right | 11 km || |-id=547 bgcolor=#d6d6d6 | 20547 || || — || September 8, 1999 || Socorro || LINEAR || HYG || align=right | 11 km || |-id=548 bgcolor=#d6d6d6 | 20548 || || — || September 8, 1999 || Socorro || LINEAR || — || align=right | 9.0 km || |-id=549 bgcolor=#d6d6d6 | 20549 || || — || September 8, 1999 || Socorro || LINEAR || EOS || align=right | 7.5 km || |-id=550 bgcolor=#E9E9E9 | 20550 || || — || September 8, 1999 || Socorro || LINEAR || — || align=right | 4.4 km || |-id=551 bgcolor=#fefefe | 20551 || || — || September 9, 1999 || Socorro || LINEAR || — || align=right | 3.0 km || |-id=552 bgcolor=#E9E9E9 | 20552 || || — || September 9, 1999 || Socorro || LINEAR || — || align=right | 6.9 km || |-id=553 bgcolor=#fefefe | 20553 Donaldhowk || || || September 9, 1999 || Socorro || LINEAR || NYS || align=right | 3.2 km || |-id=554 bgcolor=#d6d6d6 | 20554 || || — || September 9, 1999 || Socorro || LINEAR || EMA || align=right | 7.2 km || |-id=555 bgcolor=#fefefe | 20555 Jennings || || || September 9, 1999 || Socorro || LINEAR || — || align=right | 3.2 km || |-id=556 bgcolor=#fefefe | 20556 Midgekimble || || || September 9, 1999 || Socorro || LINEAR || — || align=right | 3.7 km || |-id=557 bgcolor=#fefefe | 20557 Davidkulka || || || September 9, 1999 || Socorro || LINEAR || V || align=right | 4.0 km || |-id=558 bgcolor=#E9E9E9 | 20558 || || — || September 9, 1999 || Socorro || LINEAR || GEF || align=right | 5.2 km || |-id=559 bgcolor=#E9E9E9 | 20559 Sheridanlamp || || || September 9, 1999 || Socorro || LINEAR || RAF || align=right | 3.6 km || |-id=560 bgcolor=#E9E9E9 | 20560 || || — || September 9, 1999 || Socorro || LINEAR || — || align=right | 11 km || |-id=561 bgcolor=#fefefe | 20561 || || — || September 9, 1999 || Socorro || LINEAR || — || align=right | 3.2 km || |-id=562 bgcolor=#fefefe | 20562 || || — || September 9, 1999 || Socorro || LINEAR || slow || align=right | 7.9 km || |-id=563 bgcolor=#E9E9E9 | 20563 || || — || September 9, 1999 || Socorro || LINEAR ||