Some launches of the Russian rocket will serve for deployment of European navigation system Galileo. In total, 24 Soyuzes are to fly from French Guiana. The two new members to Arianespace’s launcher family – Soyuz and Vega – will start their service at the Spaceport beginning in 2010-2011. With the three launch vehicles in full operation, Arianespace is targeting a flight activity of approximately 10 missions per year from French Guiana — composed of an average seven Ariane 5 flights annually, plus two Soyuz missions and a Vega launch.

The Soyuz’ transfer to the Spaceport’s launch zone is performed with the launcher riding horizontally atop a transporter/erector rail car. Soyuz is then raised into position on the pad, and in contrast with the Baikonur Cosmodrome processing flow, is protected by a gantry that moves into place for payload integration. The responsibilities are shared as follows: the Russian side provide development, manufacturing, delivery of Soyuz-ST, ground technological prelaunch and launch equipment, propellant components; European side provides development of the technical facilities, construction efforts, modification of the relevant space port infrastructure. Soyuz-ST launches are to be carried out jointly by Russian and European expert groups. Prelaunch processing, and Russian specialists operate Russia-delivered ground technological facilities at CSG.