29 July 2016 Main results of the PICARD mission
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Abstract
PICARD is a mission devoted to solar variability observations through imagery and radiometric measurements. The main goal is to provide data for scientific investigation first in the area of solar physics, and second in the assessment of the influence of the solar variability on the Earth climate variability. PICARD contains a double program with in-space and on-ground measurements. The PICARD spacecraft was launched on June 15, 2010, commissioned in-flight in October of the same year and was retired in April 2014. The PICARD ground-based observatory is operational since May 2011. We shall give a short overview of the PICARD instrumentation. New estimates of the absolute values of the total solar irradiance, of the solar spectral irradiance at typical wavelengths, and of the solar oblateness will be given. We will also report about helioseismic studies. Finally, we will present our current results about solar radius variations after six years of solar observation.
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M. Meftah, T. Corbard, A. Hauchecorne, A. Irbah, P. Boumier, A. Chevalier, W. Schmutz, R. Ikhlef, F. Morand, C. Renaud, J.-F. Hochedez, G. Cessateur, S. Turck-Chièze, D. Salabert, M. Rouzé, M. van Ruymbeke, P. Zhu, S. Kholikov, S. Koller, C. Conscience, S. Dewitte, L. Damé, D. Djafer, "Main results of the PICARD mission", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99040Z (29 July 2016); doi: 10.1117/12.2232027; https://doi.org/10.1117/12.2232027
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