DAWN GRAND MAP VESTA HYDROGEN ABUNDANCE V1.0
A global map of the abundance of
hydrogen in micrograms/g within the regolith of asteroid
4 Vesta is provided for two-degree equal-angle pixels. Hydrogen
abundances were determined from epithermal neutron counting data
acquired by the NASA Dawn mission's Gamma Ray and Neutron Detector
(GRaND) while in low altitude mapping orbit, about 210 km from Vesta's
surface. The abundances are representative of Vesta's bulk regolith
composition to depths of a few decimeters with a spatial resolution
of about 300-km full-width-at-half-maximum of arc length on the
surface. The methods used to determine hydrogen abunance are
described by PRETTYMANETAL2012.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| accrualPeriodicity | irregular |
| bureauCode |
[
"026:00"
]
|
| contactPoint |
{
"fn": "Thomas Morgan",
"@type": "vcard:Contact",
"hasEmail": "mailto:thomas.h.morgan@nasa.gov"
}
|
| description | A global map of the abundance of hydrogen in micrograms/g within the regolith of asteroid 4 Vesta is provided for two-degree equal-angle pixels. Hydrogen abundances were determined from epithermal neutron counting data acquired by the NASA Dawn mission's Gamma Ray and Neutron Detector (GRaND) while in low altitude mapping orbit, about 210 km from Vesta's surface. The abundances are representative of Vesta's bulk regolith composition to depths of a few decimeters with a spatial resolution of about 300-km full-width-at-half-maximum of arc length on the surface. The methods used to determine hydrogen abunance are described by PRETTYMANETAL2012. |
| identifier | urn:nasa:pds:context_pds3:data_set:data_set.dawn-a-grand-5-vesta-hydrogen-map-v1.0_nj2r-r8jf |
| issued | 2021-05-21 |
| keyword |
[
"4-vesta",
"dawn-mission-to-vesta-and-ceres"
]
|
| landingPage | https://pds.nasa.gov/ds-view/pds/viewDataset.jsp?dsid=DAWN-A-GRAND-5-VESTA-HYDROGEN-MAP-V1.0 |
| license | http://www.usa.gov/publicdomain/label/1.0/ |
| modified | 2025-07-17 |
| programCode |
[
"026:005"
]
|
| publisher |
{
"name": "National Aeronautics and Space Administration",
"@type": "org:Organization"
}
|
| references |
[
"https://pds.nasa.gov"
]
|
| theme |
[
"Earth Science"
]
|
| title | DAWN GRAND MAP VESTA HYDROGEN ABUNDANCE V1.0 |
