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The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal Corps, the USAF was established as a separate branch of the United States Armed Forces in 1947 with the enactment of the National Security Act of 1947.
The Mercury (MC) series, although known to the public as 'Advanced Vortex', are the latest generation of USAF ELINT/SIGINT satellites. They were focussed on communications intelligence (COMINT), focused at strategic level communications, but had the capability added to intercept also missile telemetry. These satellites were launched under the designation Program 7500 and were part of NRO's Program A.
Height 63.10 Meters
Max Stages 3
Mass To GTO 9000 kg
Liftoff Thrust 14200 kN
Diameter 3.05 Meters
Mass To LEO 21680 kg
Liftoff Mass 868 Tonnes
Launch Success 8
Consecutive Success 0
Maiden Flight 1994-02-07
Launch Failures 1