This 16 December for the second time the legendary Soyuz will be launched from Europe's Space Port. It will carry French Space Agency Pleiades satellites, a dual Earth observation system composed of a constellation of two optical satellites (visible and near infrared domain) on a Sun-synchronous orbit at 694 km. The Pleiades system is an optical observation system with a metric resolution designed to offer a high acquisition capability with a revisit lower than 24 hours to satisfy both civilian and miitary needs.
More backgroud information can be found on: http://www.esa.int/SPECIALS/Launchers_Home/index.html