F. Châteauneuf, L.E. Marchese, P. Côté, M. Leclerc, C. Chevalier, H. Maracco, L.N. Phong "Test campaing results for the engineering model of the SAC-D/NIRST radiometer" Proceedings of the 7th International Conference on Space Optics - ICSO, Toulouse, France, 2008
Résumé: Aquarius/SAC-D is a cooperative international mission conducted jointly by the National Aeronautics and Space Administration (NASA) of the United States ofAmerica (USA) and the Comisión Nacional de Actividades Espaciales (CONAE) of Argentina. The overall mission targets the understanding of the total Earth system and the consequences of the natural and man-made changes in the environment of the planet. Jointly developed by CONAE and the Canadian Space Agency (CSA), the New IR Sensor Technology (NIRST) instrument will monitor high temperature events on the ground related to fires and volcanic events and will measure their physical parameters. Furthermore, NIRST will take measurements of sea surface temperatures mainly off the coast of South America as well as other targeted opportunities. The design of NIRST is based on microbolometer technology developed jointly by INO and the CSA. Two arrays of 512x3 uncooled bolometric sensors will be used to measure brightness temperatures. The ground sampling angle is 534 microradians corresponding to a ground sampling distance of 350 m at the sub-satellite point. A pointing mirror allows a total swath of +/- 500 km. This paper presents an overview of the design of the NIRST camera module. An Engineering Model (EM) of the thermal infrared (TIR) camera was manufactured and its key performance parameters, as measured during the test campaign, are reported.
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