- Family: Atlas
- Length: 47.54 m
- Diameter: 3.04 m
- Launch Mass: 204 T
- Low Earth Orbit Capacity: 6580 kg
The Atlas IIA was manufactured by Lockheed Martin with the first launch on 1992-06-10. Atlas IIA has 23 successful launches and 0 failed launches with a total of 23 launches. Atlas II was a member of the Atlas family of launch vehicles, which evolved from the successful Atlas missile program of the 1950s. It was designed to launch payloads into low earth orbit, geosynchronous transfer orbit or geosynchronous orbit. Sixty-three launches of the Atlas II, IIA and IIAS models were carried out between 1991 and 2004; all sixty-three launches were successes, making the Atlas II the most reliable launch system in history.
Lockheed Martin's Space Division started in the production of missiles and later ICBM's in the 1950s. Their TITAN missile system was used for 12 Gemini spacecraft and the Voyager probes. They have worked largely in collaboration with NASA on many of their probes, landers, and spacecraft, and hope to play a key role in NASA's return to the moon in 2024. Lockheed Martin is a Commercial USA entity that was founded in 1953 and is administered by .
Lockheed Martin has 77 successful launches and 3 failed launches with a total of 80 launches.