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.

Data and Resources

This dataset has no data

Additional Info

Field	Value
Maintainer	Thomas Morgan
Last Updated	July 17, 2025, 16:36 (UTC)
Created	March 31, 2025, 22:11 (UTC)
accessLevel	public
accrualPeriodicity	irregular
bureauCode	{026:00}
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catalog_@id	https://data.nasa.gov/data.json
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harvest_object_id	a2757110-e1f4-43f0-9101-a51fa3ca7689
harvest_source_id	61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title	DNG Legacy Data
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
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	2023-01-26
programCode	{026:005}
publisher	National Aeronautics and Space Administration
references	{https://pds.nasa.gov}
resource-type	Dataset
source_datajson_identifier	true
source_hash	d5cee5d339fa87cacc89092c6c9d93a09bed8788169409097487d1db4bba031a
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theme	{"Earth Science"}