The Apollo Program
The Apollo 10 spacecraft was launched from Cape Kennedy at 12:49 p.m., EDT, on May 18, 1969. This liftoff marked the fourth manned Apollo launch in the short space of seven months. After the spacecraft completed one and a half revolutions of the Earth, the S-IVB booster stage was reignited to increase the speed of the spacecraft to the velocity required to escape the gravitational attraction of the Earth. Three days later, the spacecraft was placed in a 60- by 170-nautical miles orbit around the Moon. After the spacecraft completed two revolutions of the Moon, orbit was circularized to 60 nautical miles by a second burn of the service propulsion system.
the fifth day of the mission, Astronauts Thomas P. Stafford and Eugene
A. Cernan descended in the lunar module to an altitude of less than 47,000
feet (14,326 meters) above the Moon. At this altitude, two passes were
made over the future Apollo 11 landing site.
The LM then completed a successful rendezvous with Astronaut John W. Young
in the command module.
During the mission, the astronauts obtained hundreds of still photographs and exposed many reels of motion-picture film.
On May 24, the service propulsion system was reignited, and the astronauts began the return journey to Earth. Splashdown occurred at 12:52 p.m. on May 26, 1969, less than 4 miles (6.4 km) from the target point and the recovery ship.