Global map of the abundance of iron within the regolith of 1 Ceres determined from gamma ray counting data acquired by the NASA Dawn mission's Gamma Ray and Neutron Detector from low altitude [PRETTYMANETAL2017].

 
Citation Prettyman, T.H., Dawn GRaND hydrogen map, DAWN-A-GRAND-5-CERES-IRON_MAP_V1.0, NASA Planetary Data System, 2017.
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Data Set Abstract A global map of the concentration of iron within the regolith of asteroid 1 Ceres on twenty-degree quasi-equal-area pixels is provided. Iron concentrations were determined from gamma ray counting data acquired by Dawn's Gamma Ray and Neutron Detector (GRaND) in a low altitude mapping orbit, about 385 km from Ceres' surface (about 0.8 body radii altitude). The concentrations are representative of Ceres's bulk regolith to depths up to a few decimeters with a spatial resolution of about 600-km full-width-at-half-maximum of arc length on the surface. The methods used to determine iron concentration are described by PRETTYMANETAL2017.
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    Additional Information
    Mission Information DAWN MISSION TO VESTA AND CERES
    Data Set Information DAWN-A-GRAND-5-CERES-IRON_MAP_V1.0
    Instrument Host Information DAWN
    Instrument Information GRAND
    Target Information 1 CERES