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Vesta: from Astronomical to Geological

Wednesday, July 11, 2012
R. Aileen
Yingst

Previous maps of the asteroid Vesta were derived from albedo and elevation (Hubble Space Telescope, 38-52 km/pixel), and color data and Earth-based spectroscopy were utilized to generate mineralogic and lithologic maps. The Dawn spacecraft has acquired images of Vesta at resolutions up to 500x higher, allowing us to advance from simple identification of the largest spatial and spectral features using astronomical methodology, to complex geologic mapping of morphologic units and features, including stratigraphic and structural relation-ships. We have created 1:500,000-scale iterative global map of Vesta, based on data from the High-Altitude Mapping Orbit (HAMO).

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