Lunar orbiter spacecraft. The Lunar Orbiter Program consisted of spacecraft placed into lunar orbit to take photographs of the surface to identify potential suitable landing sites for the Apollo Program. Five Lunar Orbiters were successfully flown in 1966 and 1967 and achieved all their objectives, mapping 99% of the Moon??? surface with a resolution of 60 meters. When their missions were over, the Lunar Orbiters were commanded to crash into the Moon to prevent interference with any future spacecraft. The first impacted on 29th October 1966, three crashed on the 9th, 11th and 31st of October 1967, and the final one on 31st January 1968. The program was essential in accomplishing the Apollo Moon landings.