align=right data-sort-value="0.86" | 860 m || |-id=267 bgcolor=#d6d6d6 | 178267 Sarajevo || || || December 31, 2007 || OAM || OAM Obs. || — || align=right | 6.1 km || |-id=268 bgcolor=#C2FFFF | 178268 || || — || January 13, 2008 || Kitt Peak || Spacewatch || L5 || align=right | 16 km || |-id=269 bgcolor=#d6d6d6 | 178269 || 4178 P-L || — || September 24, 1960 || Palomar || PLS || — || align=right | 4.4 km || |-id=270 bgcolor=#E9E9E9 | 178270 || 6822 P-L || — || September 24, 1960 || Palomar || PLS || — || align=right | 1.4 km || |-id=271 bgcolor=#E9E9E9 | 178271 || 9084 P-L || — || October 17, 1960 || Palomar || PLS || — || align=right | 2.6 km || |-id=272 bgcolor=#d6d6d6 | 178272 || 1312 T-2 || — || September 29, 1973 || Palomar || PLS || — || align=right | 4.7 km || |-id=273 bgcolor=#E9E9E9 | 178273 || 1400 T-2 || — || September 29, 1973 || Palomar || PLS || — || align=right | 2.5 km || |-id=274 bgcolor=#fefefe | 178274 || 2031 T-2 || — || September 29, 1973 || Palomar || PLS || — || align=right | 1.2 km || |-id=275 bgcolor=#E9E9E9 | 178275 || 4080 T-2 || — || September 29, 1973 || Palomar || PLS || — || align=right | 1.5 km || |-id=276 bgcolor=#E9E9E9 | 178276 || 5120 T-2 || — || September 25, 1973 || Palomar || PLS || — || align=right | 2.4 km || |-id=277 bgcolor=#fefefe | 178277 || 5213 T-2 || — || September 25, 1973 || Palomar || PLS || FLO || align=right | 1.0 km || |-id=278 bgcolor=#fefefe | 178278 || 2136 T-3 || — || October 16, 1977 || Palomar || PLS || — || align=right | 1.1 km || |-id=279 bgcolor=#E9E9E9 | 178279 || 2194 T-3 || — || October 16, 1977 || Palomar || PLS || — || align=right | 4.4 km || |-id=280 bgcolor=#fefefe | 178280 || 2357 T-3 || — || October 16, 1977 || Palomar || PLS || ERI || align=right | 2.4 km || |-id=281 bgcolor=#E9E9E9 | 178281 || 2635 T-3 || — || October 16, 1977 || Palomar || PLS || — || align=right | 1.3 km || |-id=282 bgcolor=#fefefe | 178282 || 3089 T-3 || — || October 16, 1977 || Palomar || PLS || — || align=right