Atlas V 551 | Amazon Leo (LA-05)
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2026-03-30 07:31:00GMT
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Current T-0 confirmed by official or reliable sources.
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.
Type: Commercial
Successful Launch / Total Launch: 171 / 171
Number of launch attempt this year: 1
Launchers: Atlas | Delta | Vulcan
Spacecraft: -
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.
Successful Launch / Total Launch : 19 / 19
Height: 59.7 m
Diameter: 3.8 m
Liftoff Mass: 573 t
Liftoff Thrust: 12269 kN
Cost: 153000000 €
LEO / GTO capacity: 18850 kg / 8890 kg
Apogee: 40000 km
1st flight: 2006-01-19
Amazon Leo, formerly known as Project Kuiper, is a mega constellation of satellites in Low Earth Orbit that will offer broadband internet access, this constellation will be managed by Kuiper Systems LLC, a subsidiary of Amazon. This constellation is planned to be composed of 3,276 satellites. The satellites are projected to be placed in 98 orbital planes in three orbital layers, one at 590 km, 610 km and 630 km altitude.
Type: Communications
Orbit: Low Earth Orbit (LEO)
Window: 2026-03-30 07:31:00GMT
Location: Cape Canaveral SFS, FL, USA
Launches from the pad this year / Total launches from the pad: 1 / 121
Total launches from the location: 1095
Timezone: America/New_York