Cassini Spacecraft Makes Its Final Approach to Saturn
From Wikipedia :
With the launch vehicle adapter and 3,132 kg (6,905 lb) of propellants at launch, the spacecraft had a mass of 5,600 kg (12,300 lb). Only the two Phobos 1 and 2 spacecraft sent to Mars by the Soviet Union were larger. The Cassini spacecraft was 6.8 meters (22 ft) high and 4 meters (13 ft) wide.