Atlas V 551 | AEHF-4 (USA 288)

Atlas V 551 | AEHF-4 (USA 288)

Space Launch Complex 41
Cape Canaveral, FL, USA













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United Launch Alliance

United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.



This is the fourth satellite in the Advanced Extremely High Frequency (AEHF) system, which is a series of communications satellites operated by the United States Air Force Space Command. It provides global, survivable, protected communications capabilities for strategic command and tactical warfighters operating on ground, sea and air platforms.

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Atlas V 551

Height 59.70 Meters

Max Stages 2

Mass To GTO 8890 kg

Liftoff Thrust 12269 kN

Diameter 3.80 Meters

Mass To LEO 18850 kg

Liftoff Mass 573 Tonnes

Launch Success 12

Consecutive Success 12

Maiden Flight 2006-01-19

Launch Failures 0

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