It measures about 100 kilometers in diameter (130 km along its major axis) and is the largest asteroid to have been visited by a spacecraft by 2010, the "Rosetta" probe passed within 3,162 km (1,964 miles) in July 2010.
It measures about 100 kilometers in diameter (130 km along its major axis). Lutetia is to date the largest asteroid to have been visited by a spacecraft; the "Rosetta" probe passed within 3,162 km (1,964 miles) in July 2010.