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2023-06-13
Wichmann crater observed by Danuri/PolCam
PolCam will construct a global lunar map of polarimetric parameters, such as maximal polarization (P_max) and titanium distribution using three color bands centered at 320, 430, and 750 nm. PolCam’s twin cameras are mounted at 45° tilt angles from the nadir across the orbital track in opposite directions. PolCam will obtain polarimetric measurements of sunlight scattered by the lunar surface at various phase angles up to ∼140° to achieve the scientific goals during the Danuri mission. In this image, the intensity differences between the color and polarization filters showed distinct, proper variations. PolCam’s measurements will be used in researches on the regolith grains and compositional distributions of the lunar surface.
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