1.6 km || |-id=337 bgcolor=#E9E9E9 | 162337 || || — || December 7, 1999 || Catalina || CSS || — || align=right | 3.4 km || |-id=338 bgcolor=#E9E9E9 | 162338 || || — || December 12, 1999 || Socorro || LINEAR || — || align=right | 3.2 km || |-id=339 bgcolor=#E9E9E9 | 162339 || || — || December 12, 1999 || Socorro || LINEAR || — || align=right | 2.6 km || |-id=340 bgcolor=#E9E9E9 | 162340 || || — || December 5, 1999 || Socorro || LINEAR || — || align=right | 2.1 km || |-id=341 bgcolor=#E9E9E9 | 162341 || || — || December 5, 1999 || Socorro || LINEAR || — || align=right | 3.2 km || |-id=342 bgcolor=#E9E9E9 | 162342 || || — || December 5, 1999 || Kitt Peak || Spacewatch || PAD || align=right | 3.8 km || |-id=343 bgcolor=#E9E9E9 | 162343 || || — || December 8, 1999 || Socorro || LINEAR || — || align=right | 1.5 km || |-id=344 bgcolor=#E9E9E9 | 162344 || || — || December 8, 1999 || Socorro || LINEAR || — || align=right | 1.9 km || |-id=345 bgcolor=#E9E9E9 | 162345 || || — || December 8, 1999 || Kitt Peak || Spacewatch || — || align=right | 5.0 km || |-id=346 bgcolor=#E9E9E9 | 162346 || || — || December 10, 1999 || Socorro || LINEAR || RAF || align=right | 2.1 km || |-id=347 bgcolor=#E9E9E9 | 162347 || || — || December 10, 1999 || Socorro || LINEAR || — || align=right | 2.1 km || |-id=348 bgcolor=#E9E9E9 | 162348 || || — || December 12, 1999 || Socorro || LINEAR || — || align=right | 2.6 km || |-id=349 bgcolor=#E9E9E9 | 162349 || || — || December 13, 1999 || Socorro || LINEAR || — || align=right | 1.4 km || |-id=350 bgcolor=#E9E9E9 | 162350 || || — || December 14, 1999 || Socorro || LINEAR || MAR || align=right | 1.9 km || |-id=351 bgcolor=#E9E9E9 | 162351 || || — || December 15, 1999 || Socorro || LINEAR || — || align=right | 2.7 km || |-id=352 bgcolor=#C2FFFF | 162352 || || — || December 14, 1999 || Kitt Peak || Spacewatch || L4 || align=right | 12 km || |-id=353 bgcolor=#E9E9E9 | 162353 || 1999 YX || — || December 16, 1999 || Fountain Hills || C. W. Juels || — || align=right | 1.6