The Corona program led to the development of the KH-7 Gambit and KH-9 Hexagon programs. The first Gambit system, launched in 1963, was equipped with a focal length camera system. The second system, KH-8 Gambit 3, was equipped with the camera system that included a focal length camera. The system was first launched in 1966 and provided the U.S. with exquisite surveillance capabilities from space for nearly two decades. Hexagon was first launched in 1971 to improve upon Corona's capability to image broad denied areas for threats to the United States. Twelve of the 19 systems flown also carried a mapping camera to aid in U.S. military war planning. In addition, Gambit and Hexagon were launched aboard rockets built by Lockheed Martin heritage companies. Gambit 1 was launched on an Atlas launch vehicle with the orbiting Agena D upper stage and Gambit 3 was launched using a Titan IIIB booster. Hexagon was launched aboard the larger Titan IIID launch vehicle.