|| August 17, 1998 || Socorro || LINEAR || HNS || align=right | 5.6 km || |-id=553 bgcolor=#fefefe | 21553 Monchicourt || || || August 26, 1998 || Caussols || ODAS || — || align=right | 2.4 km || |-id=554 bgcolor=#d6d6d6 | 21554 Leechaohsi || || || August 24, 1998 || Socorro || LINEAR || — || align=right | 15 km || |-id=555 bgcolor=#d6d6d6 | 21555 Levary || || || August 24, 1998 || Socorro || LINEAR || URS || align=right | 19 km || |-id=556 bgcolor=#fefefe | 21556 Christineli || || || August 24, 1998 || Socorro || LINEAR || — || align=right | 5.0 km || |-id=557 bgcolor=#d6d6d6 | 21557 Daniellitt || || || August 24, 1998 || Socorro || LINEAR || EOS || align=right | 12 km || |-id=558 bgcolor=#E9E9E9 | 21558 Alisonliu || || || August 24, 1998 || Socorro || LINEAR || EUN || align=right | 6.7 km || |-id=559 bgcolor=#E9E9E9 | 21559 Jingyuanluo || || || August 24, 1998 || Socorro || LINEAR || MIT || align=right | 10 km || |-id=560 bgcolor=#d6d6d6 | 21560 Analyons || || || August 28, 1998 || Socorro || LINEAR || EOS || align=right | 8.5 km || |-id=561 bgcolor=#E9E9E9 | 21561 Masterman || || || August 28, 1998 || Socorro || LINEAR || EUN || align=right | 7.1 km || |-id=562 bgcolor=#E9E9E9 | 21562 Chrismessick || || || August 19, 1998 || Socorro || LINEAR || EUN || align=right | 3.6 km || |-id=563 bgcolor=#E9E9E9 | 21563 Chetgervais || || || August 19, 1998 || Socorro || LINEAR || — || align=right | 7.6 km || |-id=564 bgcolor=#d6d6d6 | 21564 Widmanstätten || || || August 26, 1998 || La Silla || E. W. Elst || — || align=right | 18 km || |-id=565 bgcolor=#d6d6d6 | 21565 || || — || August 26, 1998 || La Silla || E. W. Elst || — || align=right | 13 km || |-id=566 bgcolor=#d6d6d6 | 21566 || || — || August 26, 1998 || La Silla || E. W. Elst || KOR || align=right | 5.2 km || |-id=567 bgcolor=#E9E9E9 | 21567 || || — || September 1, 1998 || Woomera || F. B. Zoltowski || — || align=right | 2.6 km || |-id=568 bgcolor=#fefefe | 21568 Evanmorikawa || || || September 14, 1998 || Socorro || LINEAR || — || align=right | 4.4 km || |-id=569 bgcolor=#d6d6d6 | 21569 ||