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Facts about the Soyuz

ESA astronaut Paolo Nespoli will share a ride with his crewmates Dmitri Kondratiev and Catherine Coleman in a Soyuz TMA spacecraft that will be boosted into space on a Soyuz FG rocket from the Baikonur Cosmodrome in Kazakhstan.

Inside the spacecraft, Paolo will be the prime flight engineer. Seated to the left of commander Dmitri Kondratiev, the European astronaut will assist him in flying the vehicle up to orbit and then to the Station.

For more than 40 years, Soyuz rockets have been launched into space – they are the longest-serving route to space. The design goes back to the Vostok launcher, which was used for the first manned spaceflight in 1961, carrying Yuri Gagarin.

The Soyuz spacecraft can manoeuvre, rendezvous and dock in orbit. This is the 20th in the TMA series, which allows a greater height and weight range for the three astronauts (the ‘A’ stands for anthropometric).

With a height of 1.88 m, Paolo is one of the tallest members of the European Astronaut Corps and he will use the space inside the capsule to the last centimetre.

Each Soyuz spacecraft remains docked to the ISS for about six months to serve as a lifeboat. If necessary, Soyuz vehicles can change their docking location to clear the occupied docking port for another approaching supply craft.

The newest version of Soyuz is the TMA-M. It has new, fully digital flight computers and systems. Weighing less than the previous equipment, it allows Soyuz to carry more payload.

Modules

Orbital Module
This spherical module is used only in space and acts as living quarters, with hygiene and sleeping facilities. The orbital flight phase before docking usually lasts two days.
Descent Module
This is the only module to return to Earth and so is designed to resist the aerodynamic stresses of reentry into the atmosphere. The module descends slowly under a parachute and lands on the steppes of Kazakhstan, within reach of recovery helicopters.
Three individually moulded crew seats are situated at the bottom of the spacecraft’s interior, below the instrument panel. Their shock-absorbing material softens the landing, together with retro-rockets slowing the speed just before touchdown.
Service module
This cylindrical module contains oxygen and propellant tanks, attitude control thrusters, electronics for communication and the primary guidance and navigation control. Cosmonauts have no access to it and all the functions are controlled remotely.

Soyuz-FG Launcher characteristics

Diameter: 10.3 m
Total launch mass: 310 t
Launch performance payload: 7150 kg
Propellant mass: 157 t
Height: 49.5 m

Soyuz TMA-20 Spacecraft dimensions

Diameter: 2.7 m
Total launch mass: 7.1 t
Length: 7.2 m
Width (solar array deployed): 10.6 m
Volume: 7.2m³

Soyuz insertion timeline

Last update: 7 October 2010

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