ESA CHEOPS mission: development status
2016
The European Space Agency (ESA) Science Programme Committee (SPC) selected CHEOPS (Characterizing Exoplanets
Satellite) in October 2012 as the first S-class mission (S1) within the Agency’s Scientific Programme, targeting
launch readiness by the end of 2017. The CHEOPS mission is devoted to the first-step characterization of known
exoplanets orbiting bright stars, to be achieved through the precise measurement of exo-planet radii using the technique
of transit photometry. It is implemented as a partnership between ESA and a consortium of Member States led by
Switzerland.
CHEOPS is considered as a pilot case for implementing ”small science missions” in ESA with the following
requirements: science driven missions selected through an open Call for missions (bottom-up process); spacecraft
development schedule much shorter than for M and L missions, in the range of 4 years; and cost-capped missions to ESA
with possibly higher Member States involvement than for M or L missions.
The paper describes the CHEOPS development status, focusing on the performed hardware manufacturing and test
activities.
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