Speaker
Marie Dominique
(ROB)
Description
In the quest of understanding and modeling the solar spectral irradiance, it is mandatory to make use of data originating from multiple sources, either as input of the models or for their validation. LYRA, the Large Yield Radiometer embarked on the European Space Agency Proba2 mission, is such a source of datasets. The instrument was launched on 2 November 2009 and acquires solar irradiance measurements in four broad spectral channels from the soft X-ray to the middle ultraviolet at high cadence (nominally 20 Hz). Nevertheless, the instrument suffered a very strong degradation starting immediately after launch.
In this work, we present our analysis the observed degradation and on how it affects the use of the instrument for SSI modeling, as well as our efforts to incorporate a valid degradation correction in the calibration process.
Primary author
Marie Dominique
(ROB)
Co-authors
Mr
Ingolf Dammasch
(Royal Observatory of Belgium)
Dr
Laurence Wauters
(ROB)
