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Proceedings Paper • Open Access

Towards a standardized method to assess straylight in earth observing optical instruments

Paper Abstract

Straylight is a spurious effect that can seriously degrade the radiometric accuracy achieved by Earth observing optical instruments, as a result of the high contrast in the observed Earth radiance scenes and spectra. It is considered critical for several ESA missions such as Sentinel-5, FLEX and potential successors to CarbonSat. Although it is traditionally evaluated by Monte-Carlo simulations performed with commercial softwares (e.g. ASAP, Zemax, LightTools), semi-analytical approximate methods [1,2] have drawn some interest in recent years due to their faster computing time and the greater insight they provide in straylight mechanisms. They cannot replace numerical simulations, but may be more advantageous in contexts where many iterations are needed, for instance during the early phases of an instrument design.

Paper Details

Date Published: 25 September 2017
PDF: 10 pages
Proc. SPIE 10562, International Conference on Space Optics — ICSO 2016, 105622B (25 September 2017); doi: 10.1117/12.2296168
Show Author Affiliations
J. Caron, European Space Research and Technology Ctr. (Netherlands)
M. Taccola, European Space Research and Technology Ctr. (Netherlands)
J.-L. Bézy, European Space Research and Technology Ctr. (Netherlands)

Published in SPIE Proceedings Vol. 10562:
International Conference on Space Optics — ICSO 2016
Bruno Cugny; Nikos Karafolas; Zoran Sodnik, Editor(s)

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