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Proceedings Paper

Stray light testing of the PROBA V payload
Author(s): Y. Stockman; L. Aballea; A. Baeke; D. Beghuin; M. François; M-L. Hellin; S. Marcotte; E. Mazy; M. Taccola; J. Versluys
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Paper Abstract

The Centre Spatial de Liège in Belgium (CSL) has developed a stray light test facility for In Field and Out of Field of View stray light characterization of small Earth observation satellites. The first tested satellite is PROBA V, a small ESA satellite, developed by a Belgian consortium, dedicated to replace the SPOT VGT on SPOT missions. The test results demonstrate that the stray light performance of both PROBA V and the test facility are excellent and are in line with the model predictions. The new facility is designed for in-field and far field stray light characterization: intensities dynamic range up to 108:1 for in-field and up to 1010:1 for far field stray light in the visible to SWIR spectral ranges. Moreover, from previous stray light tests performed at CSL, vacuum conditions are needed for reaching the 10-10 rejection requirement mainly to avoid air/dust diffusion. To fulfill these requirements the stray light facility is built in one of CSL vacuum chamber located in a class 100. The large dynamic range required is achieved by using a high radiance point source allowing small diverging collimated beam. A lot of care is taken in the design of the collimator focal plane to provide a highly purely collimated luminance. Previous articles have presented the principle, the concept and a detailed analysis of the facility for stray light characterization of EO satellites. This paper goes a step forward with the presentation of actual test facility description and results obtained on PROBA V EO satellite. The achieved results are put in parallel to the modeled computed values.

Paper Details

Date Published: 24 October 2013
PDF: 11 pages
Proc. SPIE 8889, Sensors, Systems, and Next-Generation Satellites XVII, 888911 (24 October 2013); doi: 10.1117/12.2028250
Show Author Affiliations
Y. Stockman, Ctr. Spatial de Liège (Belgium)
L. Aballea, OIP Sensor Systems (Belgium)
A. Baeke, OIP Sensor Systems (Belgium)
D. Beghuin, LAMBDA-X Sa (Belgium)
M. François, European Space Research and Technology Ctr. (Netherlands)
M-L. Hellin, Ctr. Spatial de Liège (Belgium)
S. Marcotte, Ctr. Spatial de Liège (Belgium)
E. Mazy, Ctr. Spatial de Liège (Belgium)
M. Taccola, European Space Research and Technology Ctr. (Netherlands)
J. Versluys, OIP Sensor Systems (Belgium)

Published in SPIE Proceedings Vol. 8889:
Sensors, Systems, and Next-Generation Satellites XVII
Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

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