17, 1993 || La Silla || UESAC || V || align=right | 1.7 km || |-id=506 bgcolor=#E9E9E9 | 42506 || || — || March 21, 1993 || La Silla || UESAC || — || align=right | 5.2 km || |-id=507 bgcolor=#E9E9E9 | 42507 || || — || March 21, 1993 || La Silla || UESAC || — || align=right | 5.5 km || |-id=508 bgcolor=#E9E9E9 | 42508 || || — || March 21, 1993 || La Silla || UESAC || — || align=right | 2.3 km || |-id=509 bgcolor=#E9E9E9 | 42509 || || — || March 19, 1993 || La Silla || UESAC || RAF || align=right | 4.2 km || |-id=510 bgcolor=#E9E9E9 | 42510 || || — || March 17, 1993 || La Silla || UESAC || — || align=right | 2.3 km || |-id=511 bgcolor=#E9E9E9 | 42511 || || — || March 21, 1993 || La Silla || UESAC || — || align=right | 3.1 km || |-id=512 bgcolor=#E9E9E9 | 42512 || || — || March 18, 1993 || La Silla || UESAC || — || align=right | 4.1 km || |-id=513 bgcolor=#fefefe | 42513 || || — || September 18, 1993 || Palomar || H. E. Holt || — || align=right | 2.5 km || |-id=514 bgcolor=#d6d6d6 | 42514 || || — || October 9, 1993 || La Silla || E. W. Elst || — || align=right | 6.3 km || |-id=515 bgcolor=#d6d6d6 | 42515 || || — || October 9, 1993 || La Silla || E. W. Elst || — || align=right | 6.5 km || |-id=516 bgcolor=#d6d6d6 | 42516 Oistrach || || || November 11, 1993 || Tautenburg Observatory || F. Börngen || — || align=right | 7.1 km || |-id=517 bgcolor=#fefefe | 42517 || || — || December 14, 1993 || Palomar || E. F. Helin || PHO || align=right | 3.7 km || |-id=518 bgcolor=#fefefe | 42518 || || — || January 7, 1994 || Kitt Peak || Spacewatch || FLO || align=right | 3.5 km || |-id=519 bgcolor=#d6d6d6 | 42519 || || — || January 7, 1994 || Kitt Peak || Spacewatch || THM || align=right | 6.7 km || |-id=520 bgcolor=#fefefe | 42520 || || — || January 7, 1994 || Kitt Peak || Spacewatch || MAS || align=right | 1.4 km || |-id=521 bgcolor=#d6d6d6 | 42521 || || — || January 16, 1994 || Caussols || E. W. Elst, C.