Dawn Mission to Minor Planets 4 Vesta and 1 Ceres

Dawn is the first mission to orbit a main belt asteroid and the first scientific mission to use ion propulsion.  Major objectives of this mission include mapping of the surfaces of 4 Vesta and 1 Ceres,  determining its topography from stereo measurements, determining its mineralogy, measuring its elemental composition and obtaining  gravity data.  This book describes the Dawn mission, its explorat...