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CHEOPS
CHEOPS (CHaracterising ExOPlanets Satellite) is a planned European space telescope for the study of the formation of extrasolar planets. Slated for launch in 2017, the mission aims to bring an optical Ritchey–Chrétien telescope with an aperture of 30 cm, mounted on a standard small satellite platform, into a Sun-synchronous orbit of about altitude. For the planned mission duration of 3.5 years, CHEOPS is to examine known transiting exoplanets orbiting bright and nearby stars. ==History==
Organized as a partnership between the European Space Agency (ESA) and the Swiss Space Office, CHEOPS was selected in October 2012 from among 26 proposals as the first S-class ("small") space mission in ESA's Cosmic Vision programme. 〔 The project is led by the Center for Space and Habitability at the University of Bern, Switzerland, with contributions from other Swiss and European universities. The Principal Investigator for the science instrument is Willy Benz from the University of Bern. After a competition phase, Airbus Defence and Space in Spain was selected as the spacecraft builder.〔 (CHEOPS exoplanet mission meets key milestones en route to 2017 launch ). ''ESA'', 11 July 2014〕 The mission is cost capped €50 million.〔
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