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Space


Advanced Extremely High Frequency (AEHF)

Primary functionNear-Worldwide, secure, survivable satellite communications
Primary contractor Lockheed Martin Space and Strategic Missiles, Sunnyvale, CA
Satellite Bus A2100 Spacecraft Bus
Weight Approximately 13,500 lbs at launch, 9,000 lbs on-orbit
Orbit-Altitude 22, 000 + Miles (Geosynchronous)
Payload Onboard signal processing, crossbanded EHF/SHF communications
Antennas 2 SHF Downlink Phased Arrays, 2 Crosslinks, 2 Uplink/Downlink Nulling Antennas, 1 Uplink EHF Phased Array, 6 Uplink/Downlink gimballed Dish Antenna, 1 Each Uplink/Downlink earth coverage horns
Dimensions Length - 32 ft (across payload axis), S/A Panels - 75.85 ft (across solar array axis)
First Launch Apr 07 (planned)
Constellation 3 Satellites
Design Life 14 Years
Launch Vehicle: EELV
Unit Cost Approximately $477 Million per satellite
Current as of April 2004




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