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Free keywords:
Metis, Solar Orbiter, Coronagraph, Flat Field, Space Instrumentation
Abstract:
Solar Orbiter, launched on February 9th 2020, is an ESA/NASA mission conceived to study the Sun. This work presents
the embedded Metis coronagraph and its on-ground calibration in the 580-640 nm wavelength range using a flat field
panel. It provides a uniform illumination to evaluate the response of each pixel of the detector; and to characterize the
Field of View (FoV) of the coronagraph. Different images with different exposure times were acquired during the on-
ground calibration campaign. They were analyzed to verify the linearity response of the instrument and the requirements
for the FoV: the maximum area of the sky that Metis can acquire.