The Dawn mission is the current NASA spacecraft in the asteroid belt, studying the 2nd largest asteroid, Vesta. It will soon move on to the largest asteroid, the dwarf planet Ceres. Astrogeology supports Dawn with the ISIS software, participation on the science team, and dealing with issues related to the coordinate systems of asteroids, many of which cannot be well described with the spherical geometry that underpins centuries of cartography. An area of emphasis for Astrogeology staff is combining visible and spectroscopic data to understand the distribution of different materials on the surface of Vesta. http://astrogeology.usgs.gov/missions/dawn
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U.S. Department of the Interior