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Proceedings Paper

Sentinel 2: implementation of the means and methods for the CAL/VAL commissioning phase
Author(s): Thierry L. Trémas; Cécile Déchoz; Sophie Lacherade; Julien Nosavan; Beatrice Petrucci; P. Martimort; Claudia Isola
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Paper Abstract

In partnership with the European Commission and in the frame of the Copernicus program, the European Space Agency (ESA) is developing the Sentinel-2 optical imaging mission devoted to the operational monitoring of land and coastal areas. The Sentinel-2 mission is based on a satellites constellation deployed in polar sun-synchronous orbit. Sentinel-2 will offer a unique combination of global coverage with a wide field of view (290km), a high revisit (5 days with two satellites), a high resolution (10m, 20m and 60m) and multi-spectral imagery (13 spectral bands in visible and shortwave infra-red domains). The first satellite is planned to be launched in late 2014. In this context, the Centre National d’Etudes Spatiales (CNES) supports ESA to insure the cal/val commissioning phase. This paper provides first, an overview of the Sentinel-2 system and the image products delivered by the ground processing. Then the paper will present the ground segment, presently under preparation at CNES, and the various devices that compose it : the GPP in charge of producing the level 1 files, the “radiometric unit” that processes sensitivity parameters, the “geometric unit” in charge of fitting the images on a reference map, MACCS that will produce Level 2A files (computing reflectances at the Bottom of Atmosphere) and the TEC-S2 that will coordinate all the previous software and drive a database in which will be gather the incoming Level 0 files and the processed Level 1 files.

Paper Details

Date Published: 24 October 2013
PDF: 8 pages
Proc. SPIE 8889, Sensors, Systems, and Next-Generation Satellites XVII, 88890X (24 October 2013); doi: 10.1117/12.2028963
Show Author Affiliations
Thierry L. Trémas, Ctr. National d'Études Spatiales (France)
Cécile Déchoz, Ctr. National d'Études Spatiales (France)
Sophie Lacherade, Ctr. National d'Études Spatiales (France)
Julien Nosavan, Ctr. National d'Études Spatiales (France)
Beatrice Petrucci, Ctr. National d'Études Spatiales (France)
P. Martimort, European Space Research and Technology Ctr. (Netherlands)
Claudia Isola, European Space Research and Technology Ctr. (Netherlands)

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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