Degradation assessment of LYRA after 5 years on orbit : Technology Demonstration

Autor: T. Saito, Alexander Gottwald, N. Bourzgui, Ali BenMoussa, Udo Kroth, S. Gissot, Andrew R. Jones, Jean-François Hochedez, B. Giordanengo, Udo Schühle, Ali Soltani, Marie Dominique, Ingolf Dammasch
Přispěvatelé: Solar-Terrestrial Centre of Excellence [Brussels] (STCE), HELIOS - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Department of Environment and Energy [Sendai], Tohoku University [Sendai], Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, Physikalisch-Technische Bundesanstalt [Berlin] (PTB), Laboratory for Atmospheric and Space Physics [Boulder] (LASP), University of Colorado [Boulder], Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS)
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Experimental Astronomy
Experimental Astronomy, Springer Link, 2015, 30 (1), pp.29-43. ⟨10.1007/s10686-014-9437-7⟩
Experimental Astronomy, 2015, 30 (1), pp.29-43. ⟨10.1007/s10686-014-9437-7⟩
ISSN: 0922-6435
1572-9508
DOI: 10.1007/s10686-014-9437-7⟩
Popis: International audience; We present a long-term assessment of the radiometric calibration and degradation of the Large Yield Radiometer (LYRA), which has been on orbit since 2009. LYRA is an ultraviolet (UV) solar radiometer and is the first space experiment using aboard a pioneering diamond detector technology. We show that LYRA has degraded after the commissioning phase but is still exploitable scientifically after almost 5 years on orbit thanks to its redundancy design and calibration strategy correcting for instrument degradation. We focus on the inflight detector’s calibration and show that diamond photodetectors have not degraded while silicon reference photodiodes that are even less exposed to the Sun show an increase of their dark current and a decrease of their photoresponse.
Databáze: OpenAIRE
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