Third-party evidence for Apollo Moon landings their orbits. According to the group, in December 1972 a member "picks up Apollo 17 on its way to the Moon". Paul Maley reports several sightings of the Apollo 12 Command Module. Chabot Observatory calendar records an application of optical tracking during the final phases of Apollo 13, on April 17, 1970: Corralitos Observatory photographed Apollo 14. Paul Wilson and Richard T. Knadle, Jr. received voice transmissions from the Command/Service Module in lunar orbit on the morning of August 1, 1971. In an article for "QST" magazine they provide a detailed description of their work, with photographs. Jewett Observatory at
Apollo (spacecraft) 17 it also carried a scientific instrument package, with a mapping camera and a small sub-satellite to study the Moon. A major portion of the service module was taken up by propellant and the main rocket engine. Capable of multiple restarts, this engine placed the Apollo spacecraft into and out of lunar orbit, and was used for mid-course corrections between the Earth and the Moon. The service module remained attached to the command module throughout the mission. It was jettisoned just prior to reentry into the Earth's atmosphere. The lunar module was a separate vehicle designed to land on the