— || align=right | 11 km || |-id=518 bgcolor=#fefefe | 19518 Moulding || || || November 10, 1998 || Socorro || LINEAR || — || align=right | 3.6 km || |-id=519 bgcolor=#fefefe | 19519 || || — || November 18, 1998 || Kushiro || S. Ueda, H. Kaneda || — || align=right | 3.8 km || |-id=520 bgcolor=#E9E9E9 | 19520 || || — || November 25, 1998 || Socorro || LINEAR || EUN || align=right | 6.7 km || |-id=521 bgcolor=#C2E0FF | 19521 Chaos || || || November 19, 1998 || Kitt Peak || DES || cubewano (hot) || align=right | 523 km || |-id=522 bgcolor=#E9E9E9 | 19522 || || — || December 15, 1998 || Socorro || LINEAR || EUN || align=right | 6.7 km || |-id=523 bgcolor=#E9E9E9 | 19523 Paolofrisi || || || December 18, 1998 || Bologna || San Vittore Obs. || — || align=right | 6.9 km || |-id=524 bgcolor=#E9E9E9 | 19524 Acaciacoleman || || || December 23, 1998 || Kanab || E. E. Sheridan || — || align=right | 6.0 km || |-id=525 bgcolor=#fefefe | 19525 || 1999 CO || — || February 5, 1999 || Oizumi || T. Kobayashi || — || align=right | 9.9 km || |-id=526 bgcolor=#fefefe | 19526 || || — || March 20, 1999 || Socorro || LINEAR || — || align=right | 2.4 km || |-id=527 bgcolor=#fefefe | 19527 || || — || March 19, 1999 || Socorro || LINEAR || — || align=right | 4.7 km || |-id=528 bgcolor=#d6d6d6 | 19528 Delloro || || || April 4, 1999 || San Marcello || G. D'Abramo, A. Boattini || THM || align=right | 8.0 km || |-id=529 bgcolor=#fefefe | 19529 || || — || April 15, 1999 || Kitt Peak || Spacewatch || NYS || align=right | 2.9 km || |-id=530 bgcolor=#fefefe | 19530 || || — || April 6, 1999 || Socorro || LINEAR || — || align=right | 7.4 km || |-id=531 bgcolor=#fefefe | 19531 Charton || || || April 7, 1999 || Socorro || LINEAR || FLO || align=right | 3.2 km || |-id=532 bgcolor=#fefefe | 19532 || || — || April 6, 1999 || Socorro || LINEAR || — || align=right | 3.7 km || |-id=533 bgcolor=#fefefe | 19533 Garrison || || || April 7, 1999 || Socorro || LINEAR || — || align=right | 2.9 km || |-id=534 bgcolor=#fefefe | 19534 Miyagi || || ||