Geologic mapping of the AV-9 Numisia quadrangle of asteroid Vesta

NASA’s Dawn spacecraft arrived at the asteroid 4Vesta on July 16, 2011, and is now collecting imaging, spectroscopic, and elemental abundance data during its one-year orbital mission. As part of the geological analysis of the surface, the Dawn Science Team has begun geologic mapping of Vesta’s surface at the global scale [1,2] and as a series of 15 quadrangle maps that are being produced based on Framing Camera (FC) images , along with Visible & Infrared Spectrometer data (VIR) obtained during the High-Altitude Mapping Orbit (HAMO). We here concentrate on our geologic analysis and mapping of quadrangle Av-9 Numisia.