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Proceedings Paper • Open Access

Full-SiC derotator optics for METimage: preliminary design and verification approach
Author(s): E. Renotte; C. Bastin; F. Bernard; A. Bernat; JM. Boitrel; M. Bougoin; C. Flebus; E. Gillain; P. Gloesener; A. Jago; G. Laffitte; F. Lemagne; D. Logut; F. Mallet; A. Mazzoli; F. Michel; M. Pfaffe; M. Pinel; J. -M. Schumacher; F. Wolfs

Paper Abstract

METimage is an advanced multispectral radiometer for weather and climate forecasting developed by Airbus Defence & Space under the auspices of the German Space Administration (DLR) for the EUMETSAT Polar System –Second Generation (EPS-SG). The instrument is equipped with a continuously rotating scan mirror with a 1.7s period followed by a static telescope. The scan mirror permits an extended Earth view of 108° per revolution and regular views to on-board calibration sources. A derotator assembly, which is half-speed synchronised with the scanner, is inserted in the optical beam after the telescope to compensate the image rotation in the focal plane. The derotator optical arrangement is a fivemirror concept that minimises the polarisation sensitivity. The derotator design is constrained by optical performance, mass and compactness, which led to the selection of a full silicon carbide (SiC) concept. This paper describes the preliminary design and verification approach of the derotator optics.

Paper Details

Date Published: 12 July 2019
PDF: 13 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111808G (12 July 2019); doi: 10.1117/12.2536223
Show Author Affiliations
E. Renotte, AMOS s.a. (Belgium)
C. Bastin, AMOS s.a. (Belgium)
F. Bernard, AMOS s.a. (Belgium)
A. Bernat, AMOS s.a. (Belgium)
JM. Boitrel, Mersen Boostec SAS (France)
M. Bougoin, Mersen Boostec SAS (France)
C. Flebus, AMOS s.a. (Belgium)
E. Gillain, AMOS s.a. (Belgium)
P. Gloesener, AMOS s.a. (Belgium)
A. Jago, Airbus Defence and Space GmbH (Germany)
G. Laffitte, Mersen Boostec SAS (France)
F. Lemagne, AMOS s.a. (Belgium)
D. Logut, Airbus Defence and Space SAS (France)
F. Mallet, Mersen Boostec SAS (France)
A. Mazzoli, Ctr. Spatial de Liège (Belgium)
F. Michel, AMOS s.a. (Belgium)
M. Pfaffe, Airbus Defence and Space GmbH (Germany)
M. Pinel, AMOS s.a. (Belgium)
J. -M. Schumacher, AMOS s.a. (Belgium)
F. Wolfs, AMOS s.a. (Belgium)

Published in SPIE Proceedings Vol. 11180:
International Conference on Space Optics — ICSO 2018
Zoran Sodnik; Nikos Karafolas; Bruno Cugny, Editor(s)

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