{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Planetary Data System", "hasEmail": "mailto:pds-operator@jpl.nasa.gov"}, "description": "A global map thermal+epithermal  neutron counting rates binned on twenty-degree quasi-equal-area  pixels is provided. The map was determined from a time series  of the rate of neutron capture by lithium in the lithium-loaded  glass scintillator, part of the +Z phoswich sensor on Dawn's Gamma  Ray and Neutron Detector (GRaND). Neutrons in the thermal and  epithermal energy range contribute to the reaction. The data were  acquired while in low altitude mapping orbit, about 385 km from  Ceres' surface (about 0.8 body radii altitude). Prior to mapping,  the time series counting data were subjected to corrections for  variations in the flux of galactic cosmic rays and measurement  geometry, as described by PRETTYMANETAL2017.", "identifier": "urn:nasa:pds:context_pds3:data_set:data_set.dawn-a-grand-5-ceres-tpe-counts-v1.0;urn:nasa:pds:context_pds3:data_set:data_set.dawn-a-grand-5-ceres-tpe-counts-v1.0::3.0", "keyword": ["__"], "license": "https://www.usa.gov/government-works", "modified": "2026-05-18", "programCode": ["026:000"], "publisher": {"@type": "org:Organization", "name": "Small Bodies"}, "theme": ["Planetary Science"], "title": "DAWN GRAND MAP CERES TPE  NEUTRON COUNTS V1.0"}