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Proceedings Paper • Open Access

SiC challenging parts for GAIA
Author(s): M. Bougoin

Paper Abstract

GAIA is one of the cornerstone ESA missions which aims at compiling a catalogue of about one billion stars of our galaxy. Reaching the highly demanding scientific requirements lead ASTRIUM engineers to design a mechanically and thermally ultra-stable instrument. This is the reason why, thanks to its physical properties, the SiC turned out to be indispensable.

The GAIA payload includes the following hardware which is mainly made of SiC i) the 3 meters quasi octagonal torus structure, ii) two identical 1.5 meters TMA type telescopes, iii) the central sub-assembly which holds several folding mirrors and the “Radial Velocity Spectrometer”, iv) the focal plane and v) the “Basic Angle Monitoring”.

Due to the required large size (1 - 3 meters class), accuracy and shape complexity, developing and manufacturing these SiC parts was a real challenge for BOOSTEC. It is reviewed in this paper.

Paper Details

Date Published: 20 November 2017
PDF: 6 pages
Proc. SPIE 10565, International Conference on Space Optics — ICSO 2010, 105652C (20 November 2017); doi: 10.1117/12.2309232
Show Author Affiliations
M. Bougoin, BOOSTEC S.A. (France)

Published in SPIE Proceedings Vol. 10565:
International Conference on Space Optics — ICSO 2010
Errico Armandillo; Bruno Cugny; Nikos Karafolas, Editor(s)

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