|-id=431 bgcolor=#fefefe | 178431 || || — || October 14, 1998 || Catalina || CSS || H || align=right | 1.1 km || |-id=432 bgcolor=#E9E9E9 | 178432 || || — || October 14, 1998 || Caussols || ODAS || — || align=right | 1.1 km || |-id=433 bgcolor=#E9E9E9 | 178433 || || — || October 20, 1998 || Caussols || ODAS || — || align=right | 1.7 km || |-id=434 bgcolor=#fefefe | 178434 || || — || October 20, 1998 || Caussols || ODAS || — || align=right | 1.6 km || |-id=435 bgcolor=#E9E9E9 | 178435 || || — || October 18, 1998 || La Silla || E. W. Elst || — || align=right | 2.7 km || |-id=436 bgcolor=#fefefe | 178436 || || — || October 28, 1998 || Socorro || LINEAR || V || align=right | 1.4 km || |-id=437 bgcolor=#fefefe | 178437 || || — || November 10, 1998 || Caussols || ODAS || MAS || align=right | 1.2 km || |-id=438 bgcolor=#E9E9E9 | 178438 || || — || November 23, 1998 || Kitt Peak || Spacewatch || — || align=right | 1.5 km || |-id=439 bgcolor=#E9E9E9 | 178439 || || — || November 18, 1998 || Socorro || LINEAR || — || align=right | 1.3 km || |-id=440 bgcolor=#E9E9E9 | 178440 || || — || December 11, 1998 || Kitt Peak || Spacewatch || — || align=right | 2.4 km || |-id=441 bgcolor=#E9E9E9 | 178441 || || — || January 14, 1999 || Catalina || CSS || BAR || align=right | 1.8 km || |-id=442 bgcolor=#E9E9E9 | 178442 || || — || February 10, 1999 || Socorro || LINEAR || — || align=right | 1.9 km || |-id=443 bgcolor=#E9E9E9 | 178443 || || — || February 12, 1999 || Socorro || LINEAR || JUN || align=right | 1.9 km || |-id=444 bgcolor=#E9E9E9 | 178444 || || — || February 10, 1999 || Socorro || LINEAR || — || align=right | 3.9 km || |-id=445 bgcolor=#E9E9E9 | 178445 || || — || February 10, 1999 || Xinglong || SCAP || — || align=right | 4.4 km || |-id=446 bgcolor=#E9E9E9 | 178446 || || — || February 9, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.6 km || |-id=447 bgcolor=#E9E9E9 | 178447 || || — || February 10, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.9 km || |-id=448 bgcolor=#E9E9E9