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Proceedings Paper • Open Access

IASI instrument onboard Metop-A: lessons learned after almost two years in orbit
Author(s): Laurence Buffet; Eric Pequignot; Denis Blumstein; Roger Fjørtoft; Vincent Lonjou; Bruno Millet; Carole Larigauderie

Paper Abstract

The Infrared Atmospheric Sounding Interferometer (IASI) is a key element of the MetOp payload, dedicated to operational meteorology. IASI measurements allow to retrieve temperature and humidity profiles at a 1 km vertical resolution with an accuracy of respectively 1 K and 10%. The aim of this paper is to give a status of the instrument and to present some lessons learned after almost two years in orbit. As the first European infrared sounder, the IASI instrument has demonstrated its operational capability and its adequacy to user needs, with highly meaningful contributions to meteorology, climate and atmospheric chemistry studies. The in-flight performance of IASI is fully satisfactory. The sensitivity to radiative environment seems to be higher than expected: several SEU related anomalies were recorded, without any consequence on the instrument's health. The first decontamination since the commissioning phase was successfully performed in March 2008. The instrument globally shows a stable behaviour.

Paper Details

Date Published: 21 November 2017
PDF: 6 pages
Proc. SPIE 10566, International Conference on Space Optics — ICSO 2008, 1056622 (21 November 2017); doi: 10.1117/12.2308281
Show Author Affiliations
Laurence Buffet, Ctr. National d'Études Spatiales (France)
Eric Pequignot, Ctr. National d'Études Spatiales (France)
Denis Blumstein, Ctr. National d'Études Spatiales (France)
Roger Fjørtoft, Ctr. National d'Études Spatiales (France)
Vincent Lonjou, Ctr. National d'Études Spatiales (France)
Bruno Millet, Ctr. National d'Études Spatiales (France)
Carole Larigauderie, Ctr. National d'Études Spatiales (France)

Published in SPIE Proceedings Vol. 10566:
International Conference on Space Optics — ICSO 2008
Josiane Costeraste; Errico Armandillo; Nikos Karafolas, Editor(s)

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