LINEAR || EUN || align=right | 3.4 km || |-id=138 bgcolor=#E9E9E9 | 91138 || || — || May 22, 1998 || Socorro || LINEAR || — || align=right | 2.3 km || |-id=139 bgcolor=#E9E9E9 | 91139 || || — || May 22, 1998 || Socorro || LINEAR || — || align=right | 3.9 km || |-id=140 bgcolor=#E9E9E9 | 91140 || || — || June 1, 1998 || La Silla || E. W. Elst || — || align=right | 5.6 km || |-id=141 bgcolor=#E9E9E9 | 91141 || || — || June 3, 1998 || Socorro || LINEAR || — || align=right | 8.3 km || |-id=142 bgcolor=#d6d6d6 | 91142 || || — || June 20, 1998 || Caussols || ODAS || — || align=right | 7.2 km || |-id=143 bgcolor=#d6d6d6 | 91143 || || — || June 19, 1998 || Kitt Peak || Spacewatch || KOR || align=right | 3.1 km || |-id=144 bgcolor=#d6d6d6 | 91144 || || — || June 24, 1998 || Socorro || LINEAR || — || align=right | 5.7 km || |-id=145 bgcolor=#d6d6d6 | 91145 || 1998 OX || — || July 20, 1998 || Caussols || ODAS || EOS || align=right | 4.2 km || |-id=146 bgcolor=#d6d6d6 | 91146 || || — || July 20, 1998 || San Marcello || M. Tombelli, L. Tesi || EMA || align=right | 6.6 km || |-id=147 bgcolor=#d6d6d6 | 91147 || || — || July 16, 1998 || Kitt Peak || Spacewatch || — || align=right | 4.3 km || |-id=148 bgcolor=#d6d6d6 | 91148 || || — || July 20, 1998 || Caussols || ODAS || URS || align=right | 4.3 km || |-id=149 bgcolor=#d6d6d6 | 91149 || 1998 PS || — || August 15, 1998 || Prescott || P. G. Comba || THM || align=right | 4.1 km || |-id=150 bgcolor=#d6d6d6 | 91150 || || — || August 26, 1998 || Xinglong || SCAP || — || align=right | 7.9 km || |-id=151 bgcolor=#d6d6d6 | 91151 || || — || August 17, 1998 || Socorro || LINEAR || — || align=right | 8.7 km || |-id=152 bgcolor=#d6d6d6 | 91152 || || — || August 17, 1998 || Socorro || LINEAR || — || align=right | 12 km || |-id=153 bgcolor=#d6d6d6 | 91153 || || — || August 17, 1998 || Socorro || LINEAR || THM || align=right | 5.1 km || |-id=154 bgcolor=#d6d6d6 | 91154 || || — ||