about 3.2 meters (10.5 ft) long, 1.7 meters (5.6 ft) wide, and 2.3 meters (7.5 ft) high. [3] It included a solar panel, a debris shield, and several science instruments for imaging , infrared spectroscopy , and optical navigation to its destination near the comet. The spacecraft also carried two cameras, the High Resolution Imager (HRI), and