- Family: Soyuz
- Length: 46.3 m
- Diameter: 2.95 m
- Launch Mass: 312 T
- Low Earth Orbit Capacity: 7020 kg
The Soyuz 2.1a was manufactured by Progress Rocket Space Center with the first launch on 2004-11-04. Soyuz 2.1a has 36 successful launches and 1 failed launches with a total of 37 launches. The Soyuz 2.1A converted the flight control system from analog to digital, which allowed launch from fixed platforms. It also allowed big fairings and payloads.
Progress Rocket Space Centre, formerly known as TsSKB-Progress, is a space science and aerospace research company which is known for manufacturing launch vehicles and satellites. Most notably, Progress Rocket Space Centre is the manufacturer of Soyuz launch vehicles. Progress Rocket Space Center is a Commercial RUS entity that was founded in 1996 and is administered by Dmitry Baranov.
Progress Rocket Space Center has 44 successful launches and 1 failed launches with a total of 45 launches.