km || |-id=306 bgcolor=#fefefe | 177306 || || — || December 17, 2003 || Socorro || LINEAR || — || align=right | 1.3 km || |-id=307 bgcolor=#fefefe | 177307 || || — || December 16, 2003 || Anderson Mesa || LONEOS || — || align=right | 1.9 km || |-id=308 bgcolor=#E9E9E9 | 177308 || || — || December 17, 2003 || Kitt Peak || Spacewatch || — || align=right | 2.4 km || |-id=309 bgcolor=#fefefe | 177309 || || — || December 17, 2003 || Kitt Peak || Spacewatch || — || align=right | 1.0 km || |-id=310 bgcolor=#fefefe | 177310 || || — || December 18, 2003 || Socorro || LINEAR || V || align=right | 1.0 km || |-id=311 bgcolor=#fefefe | 177311 || || — || December 17, 2003 || Kitt Peak || Spacewatch || NYS || align=right | 1.3 km || |-id=312 bgcolor=#fefefe | 177312 || || — || December 18, 2003 || Socorro || LINEAR || V || align=right | 1.2 km || |-id=313 bgcolor=#fefefe | 177313 || || — || December 16, 2003 || Kitt Peak || Spacewatch || — || align=right | 1.1 km || |-id=314 bgcolor=#fefefe | 177314 || || — || December 16, 2003 || Catalina || CSS || — || align=right | 1.4 km || |-id=315 bgcolor=#fefefe | 177315 || || — || December 17, 2003 || Catalina || CSS || — || align=right | 1.1 km || |-id=316 bgcolor=#fefefe | 177316 || || — || December 18, 2003 || Socorro || LINEAR || V || align=right | 1.1 km || |-id=317 bgcolor=#E9E9E9 | 177317 || || — || December 19, 2003 || Socorro || LINEAR || — || align=right | 4.2 km || |-id=318 bgcolor=#E9E9E9 | 177318 || || — || December 17, 2003 || Palomar || NEAT || — || align=right | 2.2 km || |-id=319 bgcolor=#fefefe | 177319 || || — || December 19, 2003 || Kitt Peak || Spacewatch || MAS || align=right | 1.1 km || |-id=320 bgcolor=#E9E9E9 | 177320 || || — || December 19, 2003 || Kitt Peak || Spacewatch || HEN || align=right | 1.1 km || |-id=321 bgcolor=#fefefe | 177321 || || — || December 19, 2003 || Socorro || LINEAR || — || align=right | 1.6 km || |-id=322 bgcolor=#fefefe | 177322 || || — || December 19, 2003 || Kitt Peak || Spacewatch || — || align=right | 1.6 km