|| || — || March 19, 1999 || Socorro || LINEAR || MAR || align=right | 3.0 km || |-id=406 bgcolor=#fefefe | 59406 || || — || March 20, 1999 || Socorro || LINEAR || NYS || align=right | 3.2 km || |-id=407 bgcolor=#fefefe | 59407 || || — || March 20, 1999 || Socorro || LINEAR || — || align=right | 2.3 km || |-id=408 bgcolor=#fefefe | 59408 || || — || March 20, 1999 || Socorro || LINEAR || — || align=right | 2.2 km || |-id=409 bgcolor=#fefefe | 59409 || || — || March 20, 1999 || Socorro || LINEAR || — || align=right | 3.9 km || |-id=410 bgcolor=#fefefe | 59410 || || — || March 20, 1999 || Socorro || LINEAR || V || align=right | 1.9 km || |-id=411 bgcolor=#fefefe | 59411 || || — || March 20, 1999 || Socorro || LINEAR || V || align=right | 3.8 km || |-id=412 bgcolor=#fefefe | 59412 || || — || March 20, 1999 || Socorro || LINEAR || NYS || align=right | 4.7 km || |-id=413 bgcolor=#fefefe | 59413 || || — || March 20, 1999 || Socorro || LINEAR || V || align=right | 1.6 km || |-id=414 bgcolor=#fefefe | 59414 || || — || March 22, 1999 || Anderson Mesa || LONEOS || NYS || align=right | 1.6 km || |-id=415 bgcolor=#fefefe | 59415 || 1999 GJ || — || April 4, 1999 || Modra || A. Galád, J. Tóth || NYS || align=right | 1.9 km || |-id=416 bgcolor=#fefefe | 59416 || 1999 GM || — || April 5, 1999 || Višnjan Observatory || K. Korlević || NYS || align=right | 1.8 km || |-id=417 bgcolor=#fefefe | 59417 Giocasilli || || || April 5, 1999 || San Marcello || A. Boattini, L. Tesi || V || align=right | 1.9 km || |-id=418 bgcolor=#E9E9E9 | 59418 || || — || April 7, 1999 || Oizumi || T. Kobayashi || — || align=right | 2.7 km || |-id=419 bgcolor=#E9E9E9 | 59419 Prešov || || || April 9, 1999 || Modra || L. Kornoš, Š. Gajdoš || — || align=right | 2.6 km || |-id=420 bgcolor=#fefefe | 59420 || || — || April 9, 1999 || Oaxaca || J. M. Roe || NYS || align=right | 5.7 km || |-id=421 bgcolor=#d6d6d6 | 59421 || || — || April 5, 1999 || San Marcello || G.