Atlas V 551
United Launch Alliance
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.
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Following its longest hibernation period ever of nearly a year, NASA’s New Horizons spacecraft has emerged in good health and is ready to begin transmitting science data gathered in the distant Kuiper Belt far beyond Pluto. On June 23, flight controllers at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, confirmed New Horizons, […]
United Launch Alliance sent another batch of Amazon Leo satellites into orbit today. Except for six rockets under contract to Boeing for Starliner missions, it was the last launch of […]
Early in the morning of June 2nd, the United Launch Alliance Atlas V rocket flew in its heaviest configuration for the final time.
An Atlas 5 lifted off July 2 carrying a set of Amazon Leo satellites in the final launch by that vehicle to carry a satellite payload. The post Final Atlas 5 Amazon Leo mission launches appeared first on SpaceNews.
The Leo Atlas 8 mission is also the final flight of an Atlas 5 551 configuration. Liftoff from pad 41 at Cape Canaveral Space Force Station is scheduled for 12:24 a.m. EDT (0424 UTC).
Several orbital launches are scheduled worldwide this week. A mission to rescue the Swift observatory… The post Launch Preview: Swift rescue mission, final Atlas satellite launch appeared first on NASASpaceFlight.com.
"As for Arianespace, they have definitely stepped up."