Vittore Obs. || — || align=right | 5.7 km || |-id=432 bgcolor=#d6d6d6 | 31432 || || — || January 24, 1999 || Višnjan Observatory || K. Korlević || — || align=right | 14 km || |-id=433 bgcolor=#fefefe | 31433 || || — || January 24, 1999 || Višnjan Observatory || K. Korlević || NYS || align=right | 4.6 km || |-id=434 bgcolor=#fefefe | 31434 || || — || January 25, 1999 || Višnjan Observatory || K. Korlević || FLO || align=right | 2.8 km || |-id=435 bgcolor=#fefefe | 31435 Benhauck || || || January 23, 1999 || Caussols || ODAS || — || align=right | 2.8 km || |-id=436 bgcolor=#E9E9E9 | 31436 || || — || January 26, 1999 || Višnjan Observatory || K. Korlević || — || align=right | 4.7 km || |-id=437 bgcolor=#fefefe | 31437 Verma || || || January 16, 1999 || Socorro || LINEAR || — || align=right | 3.0 km || |-id=438 bgcolor=#fefefe | 31438 Yasuhitohayashi || || || January 16, 1999 || Socorro || LINEAR || — || align=right | 1.8 km || |-id=439 bgcolor=#fefefe | 31439 Mieyamanaka || || || January 18, 1999 || Socorro || LINEAR || — || align=right | 2.7 km || |-id=440 bgcolor=#fefefe | 31440 || || — || January 25, 1999 || Višnjan Observatory || K. Korlević || FLO || align=right | 2.6 km || |-id=441 bgcolor=#fefefe | 31441 || || — || January 17, 1999 || Kitt Peak || Spacewatch || — || align=right | 2.5 km || |-id=442 bgcolor=#fefefe | 31442 Stark || || || February 7, 1999 || Jornada || D. S. Dixon || NYS || align=right | 3.6 km || |-id=443 bgcolor=#fefefe | 31443 || || — || February 5, 1999 || Xinglong || SCAP || — || align=right | 2.2 km || |-id=444 bgcolor=#fefefe | 31444 || || — || February 9, 1999 || Oaxaca || J. M. Roe || — || align=right | 1.7 km || |-id=445 bgcolor=#fefefe | 31445 || || — || February 12, 1999 || Oizumi || T. Kobayashi || — || align=right | 4.6 km || |-id=446 bgcolor=#E9E9E9 | 31446 || || — || February 12, 1999 || Oizumi || T. Kobayashi || MAR || align=right | 5.3 km || |-id=447 bgcolor=#fefefe | 31447 || || — || February 12, 1999 || Višnjan Observatory || K. Korlević || — || align=right | 2.9 km || |-id=448 bgcolor=#fefefe |