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LAT Background Models
Published by National Aeronautics and Space Administration · Updated 04/23/2025 · Irregularly
- Last updated
- 04/23/2025
- First published 06/25/2018
- Update frequency
- Irregularly
- Formats
- Web only
- Coverage
- Nationwide
- Federal data
About this dataset
The Galactic model is a spatial and spectral template. The model for the Galactic diffuse emission was developed using spectral line surveys of HI and CO (as a tracer of H2) to derive the distribution of interstellar gas in Galactocentric rings. Infrared tracers of dust column density were used to correct column densities in directions where the optical depth of HI was either over or under-estimated. The model of the diffuse gamma-ray emission was then constructed by fitting the gamma-ray emissivities of the rings in several energy bands to the LAT observations.
Files and access
Links open the official government source
- Web pagefermi.gsfc.nasa.govWeb page
Links open outside websites we do not control.
Frequently asked questions
- Who publishes LAT Background Models?
- National Aeronautics and Space Administration publishes this dataset on Data.gov.
- How often is it updated?
- The publisher lists the update frequency as irregularly. The last update was on 04/23/2025.
- How do I download it?
- Use the official source link above to view or request the data.
Where this catalog comes from
- Data.gov CatalogU.S. General Services Administration
- State and local open data portalsSocrata Discovery API
- State and city CKAN portalsCalifornia, Virginia, Boston, Houston and more
- Government ArcGIS Hub sitesCity and county GIS data
Catalog checked 10/24/2026
We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.
Source: Data.gov · Last updated 10/24/2026 · Listing only; the data stays with the publisher
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