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    • Shuttle Radar Topography Mission DTED Level 1 (3-arc second) Data (DTED-1)

    Metadata Updated: April 10, 2026

    The Shuttle Radar Topography Mission (SRTM) successfully collected Interferometric Synthetic Aperture Radar (IFSAR) data over 80 percent of the landmass of the Earth between 60 degrees North and 56 degrees South latitudes in February 2000. The mission was co-sponsored by the National Aeronautics and Space Administration (NASA) and National Geospatial-Intelligence Agency (NGA). NASA's Jet Propulsion Laboratory (JPL) performed preliminary processing of SRTM data and forwarded partially finished data directly to NGA for finishing by NGA's contractors and subsequent monthly deliveries to the NGA Digital Products Data Wharehouse (DPDW). All the data products delivered by the contractors conform to the NGA SRTM products and the NGA Digital Terrain Elevation Data (DTED) to the Earth Resources Observation & Science (EROS) Center. The DPDW ingests the SRTM data products, checks them for formatting errors, loads the SRTM DTED into the NGA data distribution system, and ships the public domain SRTM DTED to the U.S. Geological Survey (USGS) Earth Resources Observation & Science (EROS) Center.

    Two resolutions of finished grade SRTM data are available through EarthExplorer from the collection held in the USGS EROS archive:

    1 arc-second (approximately 30-meter) high resolution elevation data are only available for the United States.

    3 arc-second (approximately 90-meter) medium resolution elevation data are available for global coverage. The 3 arc-second data were resampled using cubic convolution interpolation for regions between 60° north and 56° south latitude.

    [Summary provided by the USGS.]

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date April 10, 2026

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date April 10, 2026
    Publisher DOI/USGS/EROS
    Maintainer
    Identifier C1220555800-USGS_LTA
    Data First Published 2000-02-01
    Language en-US
    Data Last Modified 2025-03-31
    Category SRTM, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id c881d1af-2658-4874-9089-9c56d079df28
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://cmr.earthdata.nasa.gov:443/search/concepts/C1220555800-USGS_LTA.html
    Metadata Type geospatial
    Old Spatial -180.0 -56.0 180.0 60.0
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash f1698d09e41e1c03a54b778acdd84b19d168a22274f271df277bbed23870db91
    Source Schema Version 1.1
    Spatial
    Temporal 2000-02-01T00:00:00Z/2000-02-29T23:59:59.999Z

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