Ground-Based Global Navigation Satellite System (GNSS) Mixed Broadcast Ephemeris Data (30-second sampling, hourly files) from NASA CDDIS
This dataset consists of ground-based Global Navigation Satellite System (GNSS) Mixed Broadcast Ephemeris Data (daily files) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS provide autonomous geo-spatial positioning with global coverage. GNSS data sets from ground receivers at the CDDIS consist primarily of the data from the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS). Since 2011, the CDDIS GNSS archive includes data from other GNSS (Europe’s Galileo, China’s Beidou, Japan’s Quasi-Zenith Satellite System/QZSS, the Indian Regional Navigation Satellite System/IRNSS, and worldwide Satellite Based Augmentation Systems/SBASs), which are similar to the U.S. GPS in terms of the satellite constellation, orbits, and signal structure. The daily GNSS broadcast ephemeris files contain one hour of mixed multi-GNSS navigation (30-second sampling) data in RINEX format from a global permanent network of ground-based receivers, one file per site.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"026:00"
]
|
| contactPoint |
{
"fn": "Earthdata Forum",
"@type": "vcard:Contact",
"hasEmail": "mailto:earthdata-support@nasa.gov"
}
|
| description | This dataset consists of ground-based Global Navigation Satellite System (GNSS) Mixed Broadcast Ephemeris Data (daily files) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS provide autonomous geo-spatial positioning with global coverage. GNSS data sets from ground receivers at the CDDIS consist primarily of the data from the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS). Since 2011, the CDDIS GNSS archive includes data from other GNSS (Europe’s Galileo, China’s Beidou, Japan’s Quasi-Zenith Satellite System/QZSS, the Indian Regional Navigation Satellite System/IRNSS, and worldwide Satellite Based Augmentation Systems/SBASs), which are similar to the U.S. GPS in terms of the satellite constellation, orbits, and signal structure. The daily GNSS broadcast ephemeris files contain one hour of mixed multi-GNSS navigation (30-second sampling) data in RINEX format from a global permanent network of ground-based receivers, one file per site. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Data Information (Unknown Format)",
"format": "BIN",
"mediaType": "application/octet-stream",
"downloadURL": "https://cddis.nasa.gov/archive/gnss/data/hourly"
},
{
"@type": "dcat:Distribution",
"title": "Data Information (HTML)",
"format": "HTML",
"mediaType": "text/html",
"downloadURL": "https://doi.org/10.5067/GNSS/GNSS_HOURLY_X_001"
},
{
"@type": "dcat:Distribution",
"title": "Data Information (Unknown Format)",
"format": "BIN",
"mediaType": "application/octet-stream",
"downloadURL": "https://www.earthdata.nasa.gov/data/space-geodesy-techniques/gnss/data-products-holdings"
}
]
|
| identifier | 10.5067/GNSS/GNSS_HOURLY_X_001 |
| keyword |
[
"earth-science-geodetics-solid-earth-coordinate-reference-system-country-regional-coordinate-ref",
"earth-science-geodetics-solid-earth-coordinate-reference-system-global-coordinate-reference-sys",
"earth-science-geodetics-solid-earth-ellipsoid-characteristics",
"earth-science-geodetics-solid-earth-geoid-characteristics",
"earth-science-gravity-gravitational-field-solid-earth-control-surveys",
"earth-science-gravity-gravitational-field-solid-earth-gravity",
"earth-science-gravity-gravitational-field-solid-earth-polar-motion-annual-elliptical-component",
"earth-science-gravity-gravitational-field-solid-earth-polar-motion-chandler-circular-component",
"earth-science-gravity-gravitational-field-solid-earth-rotational-motion-variations-rotational-r",
"earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-angle-of-elev",
"earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-angle-of-incl",
"earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbit-type",
"earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbit-velocit",
"earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbital-posit",
"earth-science-tectonics-solid-earth-earthquakes-earthquake-magnitude-intensity",
"earth-science-tectonics-solid-earth-plate-tectonics-crustal-motion-crustal-motion-direction",
"earth-science-tectonics-solid-earth-plate-tectonics-crustal-motion-crustal-motion-rate",
"earth-science-tectonics-solid-earth-plate-tectonics-fault-movement-fault-movement-direction",
"earth-science-tectonics-solid-earth-plate-tectonics-fault-movement-fault-movement-rate",
"earth-science-tectonics-solid-earth-plate-tectonics-plate-boundaries",
"earth-science-tectonics-solid-earth-plate-tectonics-strain"
]
|
| landingPage | https://cddis.nasa.gov/archive/gnss/data/hourly |
| modified | 2026-02-10 |
| programCode |
[
"026:000"
]
|
| publisher |
{
"name": "CDDIS",
"@type": "org:Organization"
}
|
| spatial |
"[[{"EastBoundingCoordinate":180,"NorthBoundingCoordinate":90,"SouthBoundingCoordinate":-90,"WestBoundingCoordinate":-180}],"CARTESIAN"]"
|
| temporal | 1992-01-01/1992-01-01 |
| theme |
[
"Earth Science"
]
|
| title | Ground-Based Global Navigation Satellite System (GNSS) Mixed Broadcast Ephemeris Data (30-second sampling, hourly files) from NASA CDDIS |
