align=right | 1.2 km || |-id=489 bgcolor=#fefefe | 164489 || || — || March 26, 2006 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 1.4 km || |-id=490 bgcolor=#fefefe | 164490 || || — || March 24, 2006 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 2.8 km || |-id=491 bgcolor=#E9E9E9 | 164491 || || — || March 25, 2006 || Palomar || NEAT || DOR || align=right | 4.2 km || |-id=492 bgcolor=#d6d6d6 | 164492 || || — || March 25, 2006 || Catalina || CSS || — || align=right | 7.5 km || |-id=493 bgcolor=#d6d6d6 | 164493 || || — || March 23, 2006 || Catalina || CSS || — || align=right | 7.6 km || |-id=494 bgcolor=#E9E9E9 | 164494 || || — || March 26, 2006 || Mount Lemmon || Mount Lemmon Survey || — || align=right | 1.3 km || |-id=495 bgcolor=#E9E9E9 | 164495 || || — || March 25, 2006 || Kitt Peak || Spacewatch || — || align=right | 1.5 km || |-id=496 bgcolor=#fefefe | 164496 || || — || April 2, 2006 || Kitt Peak || Spacewatch || — || align=right | 1.2 km || |-id=497 bgcolor=#E9E9E9 | 164497 || || — || April 2, 2006 || Kitt Peak || Spacewatch || — || align=right | 3.5 km || |-id=498 bgcolor=#fefefe | 164498 || || — || April 2, 2006 || Kitt Peak || Spacewatch || — || align=right | 1.3 km || |-id=499 bgcolor=#E9E9E9 | 164499 || || — || April 7, 2006 || Catalina || CSS || EUN || align=right | 1.8 km || |-id=500 bgcolor=#d6d6d6 | 164500 || || — || April 7, 2006 || Kitt Peak || Spacewatch || — || align=right | 4.7 km || |} 164501–164600 |-bgcolor=#fefefe | 164501 || || — || April 7, 2006 || Catalina || CSS || — || align=right | 1.3 km || |-id=502 bgcolor=#fefefe | 164502 || || — || April 7, 2006 || Catalina || CSS || V || align=right | 1.1 km || |-id=503 bgcolor=#fefefe | 164503 || || — || April 7, 2006 || Socorro || LINEAR || V || align=right data-sort-value="0.93" | 930 m || |-id=504 bgcolor=#E9E9E9 | 164504 || || — || April 7, 2006 || Anderson Mesa || LONEOS || — || align=right | 3.3 km || |-id=505 bgcolor=#fefefe | 164505 || || — || April 2,