|| || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 1.8 km || |-id=493 bgcolor=#E9E9E9 | 40493 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 2.4 km || |-id=494 bgcolor=#E9E9E9 | 40494 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 2.7 km || |-id=495 bgcolor=#d6d6d6 | 40495 || || — || September 7, 1999 || Socorro || LINEAR || NAE || align=right | 5.3 km || |-id=496 bgcolor=#E9E9E9 | 40496 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 5.3 km || |-id=497 bgcolor=#d6d6d6 | 40497 || || — || September 7, 1999 || Socorro || LINEAR || EOS || align=right | 4.2 km || |-id=498 bgcolor=#E9E9E9 | 40498 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 5.8 km || |-id=499 bgcolor=#E9E9E9 | 40499 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 2.6 km || |-id=500 bgcolor=#d6d6d6 | 40500 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 7.7 km || |} 40501–40600 |-bgcolor=#E9E9E9 | 40501 || || — || September 7, 1999 || Socorro || LINEAR || slow || align=right | 6.2 km || |-id=502 bgcolor=#E9E9E9 | 40502 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 3.0 km || |-id=503 bgcolor=#fefefe | 40503 || || — || September 7, 1999 || Socorro || LINEAR || NYS || align=right | 2.7 km || |-id=504 bgcolor=#E9E9E9 | 40504 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 2.7 km || |-id=505 bgcolor=#E9E9E9 | 40505 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 3.6 km || |-id=506 bgcolor=#E9E9E9 | 40506 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 2.5 km || |-id=507 bgcolor=#E9E9E9 | 40507 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 5.9 km || |-id=508 bgcolor=#fefefe | 40508 || || — || September 7, 1999 || Socorro || LINEAR || — || align=right | 2.3 km || |-id=509 bgcolor=#d6d6d6 | 40509 || || — || September 7, 1999 ||