Imperfect cameras and how to fix them
Straylight is something which is exhibited in any system of lenses, and causes light to be scattered in hard-to-predict ways. In the ESA's Instrument Data Simulator (IDS) project for the Sentinel-4 satellite’s inside the UVN spectrometer there are two detectors we are simulating, it's the UVVIS and NIR. As with all optics, these are susceptible to a range of phenomena that need to be accounted for. For the past six months, we've been working on implementing a simulation of the phenomenon called straylight.
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