- Family: Atlas
- Length: 58.3 m
- Diameter: 3.81 m
- Launch Mass: 590 T
- Low Earth Orbit Capacity: 13490 kg
The Atlas V 521 was manufactured by United Launch Alliance with the first launch on 2003-07-17. Atlas V 521 has 2 successful launches and 0 failed launches with a total of 2 launches. Atlas V is the fifth major version in the Atlas rocket family. It is an expendable launch system originally designed by Lockheed Martin, now being operated by United Launch Alliance (ULA), a joint venture between Lockheed and Boeing.
