July 27, 1999 || Socorro || LINEAR || APO +1km || align=right data-sort-value="0.81" | 810 m || |-id=240 bgcolor=#E9E9E9 | 38240 || || — || August 8, 1999 || Ondřejov || L. Kotková || — || align=right | 2.1 km || |-id=241 bgcolor=#d6d6d6 | 38241 || || — || August 9, 1999 || Reedy Creek || J. Broughton || — || align=right | 5.5 km || |-id=242 bgcolor=#E9E9E9 | 38242 || || — || August 10, 1999 || Reedy Creek || J. Broughton || — || align=right | 3.4 km || |-id=243 bgcolor=#d6d6d6 | 38243 || || — || August 13, 1999 || Reedy Creek || J. Broughton || THM || align=right | 6.5 km || |-id=244 bgcolor=#E9E9E9 | 38244 || || — || August 13, 1999 || Reedy Creek || J. Broughton || HOF || align=right | 8.3 km || |-id=245 bgcolor=#d6d6d6 | 38245 Marcospontes || || || August 12, 1999 || Wykrota || C. Jacques, L. Duczmal || KOR || align=right | 3.5 km || |-id=246 bgcolor=#E9E9E9 | 38246 Palupín || || || August 14, 1999 || Kleť || J. Tichá, M. Tichý || — || align=right | 3.5 km || |-id=247 bgcolor=#fefefe | 38247 || 1999 QE || — || August 18, 1999 || Monte Agliale || S. Donati || — || align=right | 2.5 km || |-id=248 bgcolor=#E9E9E9 | 38248 || 1999 QX || — || August 17, 1999 || Kitt Peak || Spacewatch || MRX || align=right | 2.6 km || |-id=249 bgcolor=#E9E9E9 | 38249 || || — || August 24, 1999 || Farpoint || G. Bell || — || align=right | 4.6 km || |-id=250 bgcolor=#d6d6d6 | 38250 Tartois || || || August 31, 1999 || Blauvac || R. Roy || THM || align=right | 6.2 km || |-id=251 bgcolor=#E9E9E9 | 38251 || 1999 RY || — || September 4, 1999 || Catalina || CSS || — || align=right | 2.6 km || |-id=252 bgcolor=#d6d6d6 | 38252 || || — || September 3, 1999 || Kitt Peak || Spacewatch || THM || align=right | 5.6 km || |-id=253 bgcolor=#d6d6d6 | 38253 || || — || September 4, 1999 || Kitt Peak || Spacewatch || KOR || align=right | 3.9 km || |-id=254 bgcolor=#E9E9E9 | 38254 || || — || September 6, 1999 || Kitt Peak || Spacewatch || — || align=right | 3.5 km || |-id=255 bgcolor=#E9E9E9 | 38255 || || — || September