ESA Science & Technology - Publication Archive
CHEOPS is a space science mission dedicated to the study of known exoplanets orbiting bright, nearby stars. It will use the technique of ultra-high precision photometry to measure accurate sizes of a large sample of Earth to Neptune-sized planets. By combining the accurate sizes determined by CHEOPS with existing mass measurements, it will be possible to establish the bulk density and composition of the planets; these, together with information on the host stars and the planets' orbits will be used to determine the planets' formation and evolutionary history.
CHEOPS is a small satellite with a total launch mass of approximately 300 kg and dimensions of 1.55m (height) × 1.49m (width, measured from solar array edge to edge) × 1.4m (depth).
The dark colours used in this paper model are representative of the true colours of the various spacecraft components. The paper model's scale is 1:15 when printed on DIN A4 paper.
CHEOPS is a partnership between the European Space Agency (ESA) and Switzerland.
Document reference: CDF-175(C)
This document is the assessment study report for GaiaNIR (Gaia Near Infra-Red), which was one of the proposals received in response to the 2016 Call for New Science Ideas in ESA's Science Programme. Three mission concepts were selected as a result of this call, and GaiaNIR was one of them.
The GaiaNIR proposal encompasses:
- Enlarging the astrometric achievement of Gaia to the astronomical sources which are only visible in Near Infra-Red
- Maintaining the accuracy of the Gaia optical reference frame
- Improving the star parallax and proper motion accuracy by revisiting the astronomical sources a number of years after Gaia.
This document was updated on 8 June 2018, with minor edits made to page 249 according to the final version of the document. The concerned lines are indicated by a blue band on the side of that page.