On January 25, 1994, Clementine was launched from Space Launch Complex 4 West at Vandenberg Air Force Base, California, using a Titan II launch vehicle. The mission had two phases. After two Earth flybys, lunar insertion was achieved approximately one month after launch. Lunar mapping took place over approximately two months, in two parts. The first part consisted of a five-hour elliptical polar orbit with a periapsis of about 400 km at 13 degrees south latitude and an apoapsis of 8,300 km. Each orbit consisted of an 80-minute lunar mapping phase near periapsis and 139 minutes of downlink at apoapsis.