bgcolor=#fefefe | 9583 Clerke || || || April 28, 1990 || Siding Spring || R. H. McNaught || — || align=right | 3.4 km || |-id=584 bgcolor=#fefefe | 9584 Louchheim || || || July 25, 1990 || Palomar || H. E. Holt || slow || align=right | 4.4 km || |-id=585 bgcolor=#fefefe | 9585 || || — || August 28, 1990 || Palomar || H. E. Holt || — || align=right | 4.5 km || |-id=586 bgcolor=#fefefe | 9586 || || — || September 16, 1990 || Palomar || H. E. Holt || — || align=right | 3.4 km || |-id=587 bgcolor=#E9E9E9 | 9587 Bonpland || || || October 16, 1990 || La Silla || E. W. Elst || — || align=right | 4.8 km || |-id=588 bgcolor=#E9E9E9 | 9588 Quesnay || || || November 18, 1990 || La Silla || E. W. Elst || — || align=right | 4.6 km || |-id=589 bgcolor=#E9E9E9 | 9589 Deridder || || || November 21, 1990 || La Silla || E. W. Elst || — || align=right | 3.3 km || |-id=590 bgcolor=#C2FFFF | 9590 Hyria || || || February 21, 1991 || Kitt Peak || Spacewatch || L4 || align=right | 22 km || |-id=591 bgcolor=#d6d6d6 | 9591 || || — || March 20, 1991 || La Silla || H. Debehogne || — || align=right | 9.5 km || |-id=592 bgcolor=#d6d6d6 | 9592 Clairaut || || || April 8, 1991 || La Silla || E. W. Elst || KOR || align=right | 6.5 km || |-id=593 bgcolor=#fefefe | 9593 || || — || August 7, 1991 || Palomar || H. E. Holt || FLO || align=right | 3.4 km || |-id=594 bgcolor=#fefefe | 9594 Garstang || 1991 RG || || September 4, 1991 || Siding Spring || R. H. McNaught || FLO || align=right | 4.1 km || |-id=595 bgcolor=#fefefe | 9595 || || — || September 13, 1991 || Palomar || H. E. Holt || FLO || align=right | 4.4 km || |-id=596 bgcolor=#fefefe | 9596 || || — || September 15, 1991 || Palomar || H. E. Holt || — || align=right | 3.0 km || |-id=597 bgcolor=#fefefe | 9597 || 1991 UF || — || October 18, 1991 || Kushiro || S. Ueda, H. Kaneda || — || align=right | 3.8 km || |-id=598 bgcolor=#fefefe | 9598 || 1991 UQ || — || October 18, 1991 || Kushiro ||