Article (Scientific journals)
Pre-flight calibration of LYRA, the solar VUV radiometer on board PROBA2
Benmoussa, Ali; Dammasch, Ingolf; Hochedez, Jean-François et al.
2009In Astronomy and Astrophysics, 508 (2), p. 1085-1094
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Keywords :
instrumentation: detectors; instrumentation: photometers; Sun: UV radiation
Abstract :
[en] Aims. LYRA, the Large Yield Radiometer, is a vacuum ultraviolet (VUV) solar radiometer, planned to be launched in November 2009 on the European Space Agency PROBA2, the Project for On-Board Autonomy spacecraft. Methods: The instrument was radiometrically calibrated in the radiometry laboratory of the Physikalisch-Technische Bundesanstalt (PTB) at the Berlin Electron Storage ring for SYnchroton radiation (BESSY II). The calibration was done using monochromatized synchrotron radiation at PTB's VUV and soft X-ray radiometry beamlines using reference detectors calibrated with the help of an electrical substitution radiometer as the primary detector standard.<BR /> Results: A total relative uncertainty of the radiometric calibration of the LYRA instrument between 1 and 11 was achieved. LYRA will provide irradiance data of the Sun in four UV passbands and with high temporal resolution down to 10 ms. The present state of the LYRA pre-flight calibration is presented as well as the expected instrument performance.
Research center :
CSL - Centre Spatial de Liège - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Benmoussa, Ali
Dammasch, Ingolf
Hochedez, Jean-François
Schühle, Udo
Koller, Silvio
Stockman, Yvan ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Scholze, Frank
Richter, M.
Kroth, Udo
Laubis, Christian
Dominique, Marie
Kretzschmar, Marie
Mekaoui, S.
Gissot, S.
Theissen, A.
Giordanengo, Boris
Bolsee, David
Hermans, Christian
Gillotay, Didier
Defise, Jean-Marc ;  Université de Liège - ULiège > CSL : Direction générale - Satellites, missions et instruments spatiaux
Schmutz, Werner
More authors (11 more) Less
Language :
English
Title :
Pre-flight calibration of LYRA, the solar VUV radiometer on board PROBA2
Publication date :
December 2009
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
508
Issue :
2
Pages :
1085-1094
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
Available on ORBi :
since 24 December 2009

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