1988 || Geisei || T. Seki || — || align=right | 3.4 km || |-id=017 bgcolor=#E9E9E9 | 21017 || 1988 VP || — || November 3, 1988 || Yorii || M. Arai, H. Mori || — || align=right | 6.7 km || |-id=018 bgcolor=#d6d6d6 | 21018 || || — || November 2, 1988 || Gekko || Y. Oshima || — || align=right | 15 km || |-id=019 bgcolor=#d6d6d6 | 21019 || || — || November 2, 1988 || Kushiro || S. Ueda, H. Kaneda || HYG || align=right | 11 km || |-id=020 bgcolor=#fefefe | 21020 || || — || November 8, 1988 || Okutama || T. Hioki, N. Kawasato || — || align=right | 4.6 km || |-id=021 bgcolor=#d6d6d6 | 21021 || || — || December 7, 1988 || Gekko || Y. Oshima || — || align=right | 15 km || |-id=022 bgcolor=#E9E9E9 | 21022 Ike || 1989 CR || || February 2, 1989 || Geisei || T. Seki || — || align=right | 8.1 km || |-id=023 bgcolor=#E9E9E9 | 21023 || 1989 DK || — || February 28, 1989 || La Silla || H. Debehogne || — || align=right | 7.3 km || |-id=024 bgcolor=#E9E9E9 | 21024 || || — || April 3, 1989 || La Silla || E. W. Elst || — || align=right | 4.3 km || |-id=025 bgcolor=#fefefe | 21025 || || — || September 26, 1989 || La Silla || E. W. Elst || FLO || align=right | 2.1 km || |-id=026 bgcolor=#fefefe | 21026 || || — || September 26, 1989 || La Silla || E. W. Elst || — || align=right | 1.6 km || |-id=027 bgcolor=#d6d6d6 | 21027 || || — || September 28, 1989 || La Silla || E. W. Elst || KOR || align=right | 4.6 km || |-id=028 bgcolor=#FA8072 | 21028 || 1989 TO || — || October 4, 1989 || Palomar || E. F. Helin || PHO || align=right | 5.7 km || |-id=029 bgcolor=#d6d6d6 | 21029 Adorno || || || October 7, 1989 || La Silla || E. W. Elst || — || align=right | 4.5 km || |-id=030 bgcolor=#FA8072 | 21030 || || — || October 2, 1989 || Cerro Tololo || S. J. Bus || — || align=right | 3.0 km || |-id=031 bgcolor=#fefefe | 21031 || || — || October 3, 1989 || La Silla || H. Debehogne || — || align=right |