bgcolor=#fefefe | 19984 || || — || March 2, 1990 || La Silla || E. W. Elst || — || align=right | 2.9 km || |-id=985 bgcolor=#fefefe | 19985 || 1990 GD || — || April 15, 1990 || La Silla || E. W. Elst || — || align=right | 3.5 km || |-id=986 bgcolor=#E9E9E9 | 19986 || 1990 KD || — || May 20, 1990 || Siding Spring || R. H. McNaught || MIT || align=right | 7.5 km || |-id=987 bgcolor=#d6d6d6 | 19987 || || — || August 28, 1990 || Palomar || H. E. Holt || — || align=right | 6.1 km || |-id=988 bgcolor=#fefefe | 19988 || || — || August 22, 1990 || Palomar || H. E. Holt || — || align=right | 2.0 km || |-id=989 bgcolor=#E9E9E9 | 19989 || || — || September 15, 1990 || La Silla || H. Debehogne || HEN || align=right | 3.6 km || |-id=990 bgcolor=#E9E9E9 | 19990 || || — || September 22, 1990 || La Silla || E. W. Elst || AGN || align=right | 3.0 km || |-id=991 bgcolor=#E9E9E9 | 19991 || || — || September 22, 1990 || La Silla || E. W. Elst || — || align=right | 4.5 km || |-id=992 bgcolor=#E9E9E9 | 19992 Schönbein || || || October 10, 1990 || Tautenburg Observatory || F. Börngen, L. D. Schmadel || — || align=right | 9.0 km || |-id=993 bgcolor=#E9E9E9 | 19993 Günterseeber || || || October 10, 1990 || Tautenburg Observatory || L. D. Schmadel, F. Börngen || — || align=right | 3.1 km || |-id=994 bgcolor=#E9E9E9 | 19994 Tresini || || || October 13, 1990 || Nauchnij || L. G. Karachkina, G. R. Kastelʹ || GEF || align=right | 5.2 km || |-id=995 bgcolor=#E9E9E9 | 19995 || || — || November 12, 1990 || La Silla || E. W. Elst || GEF || align=right | 5.8 km || |-id=996 bgcolor=#E9E9E9 | 19996 || 1990 WZ || — || November 18, 1990 || La Silla || E. W. Elst || — || align=right | 9.4 km || |-id=997 bgcolor=#d6d6d6 | 19997 || || — || November 18, 1990 || La Silla || E. W. Elst || — || align=right | 3.7 km || |-id=998 bgcolor=#E9E9E9 | 19998 Binoche || || || November 18, 1990 || La Silla || E. W. Elst || GEF || align=right | 4.1 km || |-id=999 bgcolor=#fefefe