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SOVAP/Picard, a spaceborne radiometer to measure the Total Solar Irradiance

Abstract : The Picard spacecraft was successfully launched on June 15, 2010, into a Sun synchronous orbit. The mission represents one of the European contributions to solar observations and Essential Climate Variables (ECVs) measurements. The payload is composed of a Solar Diameter Imager and Surface Mapper (SODISM) and two radiometers: SOlar VAriability Picard (SOVAP) and PREcision MOnitor Sensor (PREMOS). SOVAP, a dual side-by-side cavity radiometer, measures the total solar irradiance (TSI). It is the sixth of a series of differential absolute radiometer type instruments developed and operated in space by the Royal Meteorological Institute of Belgium. The measurements of SOVAP in the summer of 2010, yielded a TSI value of 1362.1 W.m−2 with an uncertainty of ±2.4W.m−2 (k=1). During the periods of November 2010 and January 2013, the amplitude of the changes in TSI has been of the order of 0.18%, corresponding to a range of about 2.4W.m−2.
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https://hal.archives-ouvertes.fr/hal-00876178
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Submitted on : Thursday, October 24, 2013 - 8:20:57 AM
Last modification on : Thursday, January 13, 2022 - 1:40:02 PM

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Mustapha Meftah, Steven Dewitte, Abdanour Irbah, Andre Chevalier, Christian Conscience, et al.. SOVAP/Picard, a spaceborne radiometer to measure the Total Solar Irradiance. Solar Physics, 2014, 289 (5), pp.1885-1899. ⟨10.1007/s11207-013-0443-0⟩. ⟨hal-00876178⟩

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