Atlas V 551
USA Wikipedia 
Built & Operated By
United Launch Alliance
Commercial · founded 2006
Family
Atlas
variant 551
Maiden Flight
19 JAN 2006
About
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.
Vehicle Specifications
Height
59.7 m
Diameter
3.8 m
Launch Mass
573 T
Thrust
12,269 kN
Stages
1–2
Configuration
Expendable
Launch Record
Total Launches
23
Successful
23
Failed
0
Consecutive
23
Performance
To LEO
18,850 kg
To GTO
8,890 kg
Apogee
40,000 km
Launch Cost
$153.0M