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United Launch Alliance
Atlas V 551 | AEHF-4 (USA 288)
Recorded mission coverage
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Mission brief
The flight at a glance.
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.
Open the full mission →Published flight sequence
Know what comes next.
Planned timings relative to the target. These steps do not indicate live progress.
A flight sequence has not been published for this mission.