— || align=right | 2.9 km || |-id=392 bgcolor=#fefefe | 177392 || || — || January 24, 2004 || Socorro || LINEAR || NYS || align=right | 1.0 km || |-id=393 bgcolor=#fefefe | 177393 || || — || January 23, 2004 || Socorro || LINEAR || V || align=right | 1.0 km || |-id=394 bgcolor=#E9E9E9 | 177394 || || — || January 23, 2004 || Socorro || LINEAR || ADE || align=right | 3.1 km || |-id=395 bgcolor=#E9E9E9 | 177395 || || — || January 28, 2004 || Socorro || LINEAR || — || align=right | 3.0 km || |-id=396 bgcolor=#E9E9E9 | 177396 || || — || January 28, 2004 || Socorro || LINEAR || — || align=right | 3.5 km || |-id=397 bgcolor=#fefefe | 177397 || || — || January 28, 2004 || Haleakala || NEAT || — || align=right | 1.7 km || |-id=398 bgcolor=#E9E9E9 | 177398 || || — || January 23, 2004 || Socorro || LINEAR || — || align=right | 1.9 km || |-id=399 bgcolor=#E9E9E9 | 177399 || || — || January 23, 2004 || Socorro || LINEAR || — || align=right | 4.1 km || |-id=400 bgcolor=#fefefe | 177400 || || — || January 28, 2004 || Kitt Peak || Spacewatch || — || align=right | 1.5 km || |} 177401–177500 |-bgcolor=#fefefe | 177401 || || — || January 28, 2004 || Catalina || CSS || — || align=right | 1.5 km || |-id=402 bgcolor=#E9E9E9 | 177402 || || — || January 28, 2004 || Catalina || CSS || BRU || align=right | 3.4 km || |-id=403 bgcolor=#E9E9E9 | 177403 || || — || January 28, 2004 || Catalina || CSS || HNS || align=right | 3.4 km || |-id=404 bgcolor=#fefefe | 177404 || || — || January 28, 2004 || Catalina || CSS || — || align=right | 1.9 km || |-id=405 bgcolor=#fefefe | 177405 || || — || January 30, 2004 || Socorro || LINEAR || — || align=right | 1.8 km || |-id=406 bgcolor=#fefefe | 177406 || || — || January 21, 2004 || Socorro || LINEAR || V || align=right | 1.1 km || |-id=407 bgcolor=#fefefe | 177407 || || — || January 22, 2004 || Socorro || LINEAR || MAS || align=right | 1.1 km || |-id=408 bgcolor=#fefefe | 177408 || || — || January 22, 2004 || Socorro || LINEAR || — || align=right | 1.5 km ||