16, 1977 || Palomar || PLS || — || align=right | 6.0 km || |-id=509 bgcolor=#fefefe | 46509 || 4149 T-3 || — || October 16, 1977 || Palomar || PLS || NYS || align=right | 1.7 km || |-id=510 bgcolor=#fefefe | 46510 || 4323 T-3 || — || October 16, 1977 || Palomar || PLS || — || align=right | 1.9 km || |-id=511 bgcolor=#d6d6d6 | 46511 || 4356 T-3 || — || October 16, 1977 || Palomar || PLS || EOS || align=right | 5.4 km || |-id=512 bgcolor=#E9E9E9 | 46512 || 1951 QD || — || August 31, 1951 || Mount Wilson || L. E. Cunningham || DOR || align=right | 8.2 km || |-id=513 bgcolor=#fefefe | 46513 Ampzing || 1972 FC || || March 16, 1972 || Palomar || T. Gehrels || H || align=right | 1.6 km || |-id=514 bgcolor=#fefefe | 46514 Lasswitz || 1977 JA || || May 15, 1977 || La Silla || H.-E. Schuster || PHO || align=right | 2.2 km || |-id=515 bgcolor=#fefefe | 46515 || || — || November 7, 1978 || Palomar || E. F. Helin, S. J. Bus || — || align=right | 2.8 km || |-id=516 bgcolor=#d6d6d6 | 46516 || || — || November 6, 1978 || Palomar || E. F. Helin, S. J. Bus || KOR || align=right | 3.6 km || |-id=517 bgcolor=#E9E9E9 | 46517 || || — || November 7, 1978 || Palomar || E. F. Helin, S. J. Bus || — || align=right | 2.4 km || |-id=518 bgcolor=#d6d6d6 | 46518 || || — || November 6, 1978 || Palomar || E. F. Helin, S. J. Bus || KOR || align=right | 4.3 km || |-id=519 bgcolor=#d6d6d6 | 46519 || || — || June 25, 1979 || Siding Spring || E. F. Helin, S. J. Bus || HYG || align=right | 5.7 km || |-id=520 bgcolor=#E9E9E9 | 46520 || || — || June 25, 1979 || Siding Spring || E. F. Helin, S. J. Bus || PAD || align=right | 6.2 km || |-id=521 bgcolor=#fefefe | 46521 || || — || June 25, 1979 || Siding Spring || E. F. Helin, S. J. Bus || — || align=right | 1.3 km || |-id=522 bgcolor=#E9E9E9 | 46522 || || — || June 25, 1979 || Siding Spring || E. F. Helin, S. J. Bus || — || align=right | 3.0 km || |-id=523 bgcolor=#d6d6d6