OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System):
A Wide-Angle Camera and a Narrow-Angle Camera to obtain high-resolution images of asteroids, the comet nucleus and to help in identifying the best landing sites.
The orbiter's scientific payload includes 11 experiments, in addition to the lander. Scientific consortia from institutes across Europe and the United States have provided these state-of-the-art instruments. All of them are located on the side of the spacecraft that will permanently face the comet during the main scientific phase of the mission.