Atlas V 551 | AEHF-4 (USA 288)
Launch Successful
L - -- : -- : -- : --
Launch Window
Oct. 17, 2018, 4:15 a.m. - Oct. 17, 2018, 6:15 a.m.
Oct. 17, 2018, 4:15 a.m. - Oct. 17, 2018, 6:15 a.m.
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.
Atlas V is an expendable launch system in the Atlas rocket family. It was formerly operated by Lockheed Martin and is now operated by United Launch Alliance (ULA), a joint venture with Boeing. Each Atlas V rocket uses a Russian-built RD-180 engine burning kerosene and liquid oxygen to power its first stage and an American-built RL10 engine burning liquid hydrogen and liquid oxygen to power its Centaur upper stage. The RD-180 engines are provided by RD Amross, while Aerojet Rocketdyne provides both the RL10 engines and the strap-on boosters used in some configurations. The standard payload fairing sizes are 4 or 5 meters in diameter and of various lengths. Fairings sizes as large as 7.2 m in diameter and up to 32.3 m in length have been considered. The rocket is assembled in Decatur, Alabama and Harlingen, Texas.
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.
INFO WIKIA batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 20 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Next generation Chinese ocean salinity measurements satellite to study ocean climatic changes and its effects on ecology and biological cycles.
A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
The Koreasat 6A spacecraft, built by Thales Alenia Space, will have 20 transponders for fixed satellite services and six for TV broadcasting to repla…
Launch of 15 satellites on share-ride to SSO: * Shiyan 26 A/B/C * Jilin-1 High Resolution-05B * Jilin-1 Platform-02A-03 * Yunyao-1 31-36 * Xig…
A batch of 20 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
4 X-band synthetic-aperture radar Earth observation satellites for the Chinese Earth observation satellite company PIESAT.
A batch of 23 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Launch of a yet to identified satellite to SSO for an undisclosed customer. The customer is highly likely to be Low Earth Orbit communication satelli…
