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    • Global Navigation Satellite System (GNSS) Satellite Data from NASA CDDIS

    Metadata Updated: February 6, 2026

    Global Navigation Satellite System (GNSS) data consists of the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS) (plus other international systems) data sets. The Global Positioning System, developed by the U.S. Department of Defense, has been fully operational since 1994. GPS consists of a constellation of 24 satellites and three active spares each traveling in a 12 hour circular orbit, 20,200 kilometers above the Earth. The satellites are positioned so that six are observable nearly 100 percent of the time from any point on the Earth. The GLObal NAvigation Satellite System (GLONASS), managed and deployed by the Russian Federation, is similar to the U. S. Global Positioning System (GPS) in terms of the satellite constellation, orbits, and signal structure. GNSS receivers detect, decode, and process signals from the GNSS satellites.

    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 April 11, 2025
    Metadata Updated Date February 6, 2026

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 11, 2025
    Metadata Updated Date February 6, 2026
    Publisher CDDIS
    Maintainer
    Identifier 10.5067/GNSS/daily_satellite_data_001
    Data Last Modified 2026-02-03
    Category Earth Science
    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 09df43c6-2790-419c-b191-210af7f53ced
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/GNSS/daily_satellite_data_001
    Old Spatial {"EastBoundingCoordinate":180,"NorthBoundingCoordinate":90,"SouthBoundingCoordinate":-90,"WestBoundingCoordinate":-180},"CARTESIAN"
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash 14524f9f6c3bd638fb89da0e21a2514fd2963dbf475ff417678c5024879251c9
    Source Schema Version 1.1
    Spatial
    Temporal 2002-01-01/2002-01-01

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