Vanessaspini || || || April 23, 1998 || Socorro || LINEAR || V || align=right | 3.1 km || |-id=485 bgcolor=#d6d6d6 | 19485 || || — || April 23, 1998 || Socorro || LINEAR || EOSslow || align=right | 10 km || |-id=486 bgcolor=#E9E9E9 | 19486 || || — || April 23, 1998 || Socorro || LINEAR || — || align=right | 6.6 km || |-id=487 bgcolor=#fefefe | 19487 Rosscoleman || || || April 23, 1998 || Socorro || LINEAR || — || align=right | 3.9 km || |-id=488 bgcolor=#fefefe | 19488 Abramcoley || || || April 23, 1998 || Socorro || LINEAR || — || align=right | 2.9 km || |-id=489 bgcolor=#E9E9E9 | 19489 || || — || April 25, 1998 || La Silla || E. W. Elst || — || align=right | 4.7 km || |-id=490 bgcolor=#E9E9E9 | 19490 || || — || April 19, 1998 || Kitt Peak || Spacewatch || — || align=right | 5.7 km || |-id=491 bgcolor=#E9E9E9 | 19491 || || — || April 24, 1998 || Socorro || LINEAR || — || align=right | 7.1 km || |-id=492 bgcolor=#fefefe | 19492 || 1998 JT || — || May 1, 1998 || Haleakala || NEAT || — || align=right | 3.3 km || |-id=493 bgcolor=#E9E9E9 | 19493 || || — || May 1, 1998 || Haleakala || NEAT || — || align=right | 4.5 km || |-id=494 bgcolor=#d6d6d6 | 19494 Gerbs || || || May 23, 1998 || Anderson Mesa || LONEOS || EOS || align=right | 8.5 km || |-id=495 bgcolor=#E9E9E9 | 19495 Terentyeva || || || May 23, 1998 || Anderson Mesa || LONEOS || MAR || align=right | 6.0 km || |-id=496 bgcolor=#fefefe | 19496 Josephbarone || || || May 22, 1998 || Socorro || LINEAR || NYS || align=right | 3.0 km || |-id=497 bgcolor=#fefefe | 19497 Pineda || || || May 22, 1998 || Socorro || LINEAR || NYS || align=right | 2.9 km || |-id=498 bgcolor=#E9E9E9 | 19498 || || — || May 22, 1998 || Socorro || LINEAR || — || align=right | 5.4 km || |-id=499 bgcolor=#E9E9E9 | 19499 Eugenybiryukov || || || May 27, 1998 || Anderson Mesa || LONEOS || — || align=right | 4.5 km || |-id=500 bgcolor=#E9E9E9 | 19500 Hillaryfultz || || || May 23, 1998 || Socorro || LINEAR || — || align=right | 7.6 km || |} 19501–19600 |-bgcolor=#d6d6d6 |