- Family: Atlas
- Length: 52.8 m
- Diameter: 3.05 m
- Launch Mass: 213 T
- Low Earth Orbit Capacity: 10218 kg
The Atlas IIIB was manufactured by Lockheed Martin with the first launch on 2002-02-21. Atlas IIIB has 4 successful launches and 0 failed launches with a total of 4 launches. American orbital launch vehicle used between 2000 and 2005.
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.