— || April 18, 1999 || Woomera || F. B. Zoltowski || EOS || align=right | 9.9 km || |-id=373 bgcolor=#d6d6d6 | 28373 || || — || April 18, 1999 || Catalina || CSS || — || align=right | 17 km || |-id=374 bgcolor=#d6d6d6 | 28374 || || — || April 17, 1999 || Socorro || LINEAR || THM || align=right | 9.4 km || |-id=375 bgcolor=#d6d6d6 | 28375 || 1999 JC || — || May 2, 1999 || Višnjan Observatory || K. Korlević || THM || align=right | 12 km || |-id=376 bgcolor=#fefefe | 28376 Atifjaved || || || May 10, 1999 || Socorro || LINEAR || FLO || align=right | 1.9 km || |-id=377 bgcolor=#E9E9E9 | 28377 || || — || May 10, 1999 || Socorro || LINEAR || EUN || align=right | 7.4 km || |-id=378 bgcolor=#d6d6d6 | 28378 || || — || May 10, 1999 || Socorro || LINEAR || EOS || align=right | 8.8 km || |-id=379 bgcolor=#fefefe | 28379 || || — || May 10, 1999 || Socorro || LINEAR || — || align=right | 3.2 km || |-id=380 bgcolor=#E9E9E9 | 28380 || || — || May 10, 1999 || Socorro || LINEAR || GEF || align=right | 6.2 km || |-id=381 bgcolor=#d6d6d6 | 28381 || || — || May 10, 1999 || Socorro || LINEAR || EOS || align=right | 10 km || |-id=382 bgcolor=#fefefe | 28382 Stevengillen || || || May 10, 1999 || Socorro || LINEAR || MAS || align=right | 2.4 km || |-id=383 bgcolor=#E9E9E9 | 28383 || || — || May 12, 1999 || Socorro || LINEAR || — || align=right | 5.9 km || |-id=384 bgcolor=#fefefe | 28384 || || — || May 10, 1999 || Socorro || LINEAR || V || align=right | 4.4 km || |-id=385 bgcolor=#d6d6d6 | 28385 || || — || May 12, 1999 || Socorro || LINEAR || — || align=right | 19 km || |-id=386 bgcolor=#d6d6d6 | 28386 || || — || May 13, 1999 || Socorro || LINEAR || — || align=right | 8.3 km || |-id=387 bgcolor=#d6d6d6 | 28387 || || — || May 13, 1999 || Socorro || LINEAR || MEL || align=right | 14 km || |-id=388 bgcolor=#d6d6d6 | 28388 || || — || May 12, 1999 || Socorro || LINEAR || — || align=right | 8.5 km || |-id=389 bgcolor=#d6d6d6 | 28389 || || — || May