The Bruce Murray Space Image Library
Calibration target on Phoenix
Filed under amateur image processing, Phoenix
Phoenix is equipped with several calibration targets to help the camera team make sure camera images taken many sols apart can be directly compared. Underneath the six large gray and color chips on the periphery of the calibration target are ring-shaped magnets that attract Martian dust to the outside of the target while keeping the center of the target clean.
NASA / JPL-Caltech / UA / Texas A & M / color composite by Emily Lakdawalla
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