— || October 19, 1990 || Dynic || A. Sugie || — || align=right | 2.9 km || |-id=509 bgcolor=#d6d6d6 | 16509 || || — || October 16, 1990 || La Silla || E. W. Elst || HYG || align=right | 11 km || |-id=510 bgcolor=#fefefe | 16510 || || — || October 16, 1990 || La Silla || E. W. Elst || V || align=right | 4.0 km || |-id=511 bgcolor=#fefefe | 16511 || || — || October 16, 1990 || La Silla || E. W. Elst || — || align=right | 3.0 km || |-id=512 bgcolor=#fefefe | 16512 || || — || November 15, 1990 || La Silla || E. W. Elst || V || align=right | 3.1 km || |-id=513 bgcolor=#E9E9E9 | 16513 Vasks || || || November 15, 1990 || La Silla || E. W. Elst || — || align=right | 7.8 km || |-id=514 bgcolor=#d6d6d6 | 16514 Stevelia || || || November 11, 1990 || Palomar || C. S. Shoemaker, D. H. Levy || — || align=right | 7.6 km || |-id=515 bgcolor=#d6d6d6 | 16515 Usmanʹgrad || || || November 15, 1990 || Nauchnij || L. I. Chernykh || THM || align=right | 11 km || |-id=516 bgcolor=#fefefe | 16516 Efremlevitan || || || November 15, 1990 || Nauchnij || L. I. Chernykh || NYS || align=right | 6.4 km || |-id=517 bgcolor=#fefefe | 16517 || 1990 WD || — || November 19, 1990 || Siding Spring || R. H. McNaught || — || align=right | 4.2 km || |-id=518 bgcolor=#fefefe | 16518 Akihikoito || 1990 WF || || November 16, 1990 || Okutama || T. Hioki, S. Hayakawa || FLO || align=right | 4.9 km || |-id=519 bgcolor=#fefefe | 16519 || 1990 WV || — || November 18, 1990 || La Silla || E. W. Elst || FLO || align=right | 2.8 km || |-id=520 bgcolor=#fefefe | 16520 || || — || November 21, 1990 || La Silla || E. W. Elst || FLO || align=right | 2.9 km || |-id=521 bgcolor=#d6d6d6 | 16521 || || — || November 18, 1990 || La Silla || E. W. Elst || TEL || align=right | 5.8 km || |-id=522 bgcolor=#d6d6d6 | 16522 Tell || || || January 15, 1991 || Tautenburg Observatory || F. Börngen || URS || align=right | 13 km || |-id=523 bgcolor=#E9E9E9 | 16523 || 1991 BP || — || January 19, 1991