|| October 3, 1999 || Kitt Peak || Spacewatch || NYS || align=right data-sort-value="0.90" | 900 m || |-id=483 bgcolor=#fefefe | 178483 || || — || October 4, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.2 km || |-id=484 bgcolor=#fefefe | 178484 || || — || October 7, 1999 || Kitt Peak || Spacewatch || NYS || align=right | 1.0 km || |-id=485 bgcolor=#d6d6d6 | 178485 || || — || October 15, 1999 || Socorro || LINEAR || — || align=right | 3.0 km || |-id=486 bgcolor=#fefefe | 178486 || || — || October 8, 1999 || Kitt Peak || Spacewatch || NYS || align=right data-sort-value="0.74" | 740 m || |-id=487 bgcolor=#fefefe | 178487 || || — || October 8, 1999 || Kitt Peak || Spacewatch || NYS || align=right | 1.0 km || |-id=488 bgcolor=#d6d6d6 | 178488 || || — || October 10, 1999 || Kitt Peak || Spacewatch || EOS || align=right | 2.9 km || |-id=489 bgcolor=#fefefe | 178489 || || — || October 10, 1999 || Kitt Peak || Spacewatch || — || align=right | 1.4 km || |-id=490 bgcolor=#d6d6d6 | 178490 || || — || October 12, 1999 || Kitt Peak || Spacewatch || HYG || align=right | 3.7 km || |-id=491 bgcolor=#fefefe | 178491 || || — || October 2, 1999 || Socorro || LINEAR || FLO || align=right data-sort-value="0.98" | 980 m || |-id=492 bgcolor=#fefefe | 178492 || || — || October 3, 1999 || Socorro || LINEAR || FLO || align=right data-sort-value="0.99" | 990 m || |-id=493 bgcolor=#fefefe | 178493 || || — || October 4, 1999 || Socorro || LINEAR || V || align=right data-sort-value="0.95" | 950 m || |-id=494 bgcolor=#fefefe | 178494 || || — || October 4, 1999 || Socorro || LINEAR || — || align=right | 1.1 km || |-id=495 bgcolor=#fefefe | 178495 || || — || October 4, 1999 || Socorro || LINEAR || NYS || align=right data-sort-value="0.92" | 920 m || |-id=496 bgcolor=#fefefe | 178496 || || — || October 4, 1999 || Socorro || LINEAR || FLO || align=right data-sort-value="0.92" | 920 m || |-id=497 bgcolor=#d6d6d6 | 178497 || || — || October 4, 1999 || Socorro || LINEAR || — || align=right | 4.7 km || |-id=498 bgcolor=#fefefe | 178498 || || — || October 4, 1999 || Socorro || LINEAR || NYS || align=right | 2.6 km || |-id=499