{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Thomas Morgan", "hasEmail": "mailto:thomas.h.morgan@nasa.gov"}, "description": "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.", "identifier": "urn:nasa:pds:context_pds3:data_set:data_set.dawn-a-grand-5-ceres-iron_map_v1.0_7r36-s4wi", "issued": "2021-05-21", "keyword": ["1-ceres", "dawn-mission-to-vesta-and-ceres"], "landingPage": "https://pds.nasa.gov/ds-view/pds/viewDataset.jsp?dsid=DAWN-A-GRAND-5-CERES-IRON_MAP_V1.0", "license": "http://www.usa.gov/publicdomain/label/1.0/", "modified": "2025-07-17", "programCode": ["026:005"], "publisher": {"@type": "org:Organization", "name": "National Aeronautics and Space Administration"}, "references": ["https://pds.nasa.gov"], "theme": ["Earth Science"], "title": "DAWN GRAND MAP CERES IRON MAP V1.0"}