Skip to main content

Geodetics Data Access and Tools

NASA has geodetics datasets that help researchers characterize the shape of Earth and the motion of its components. Access a range of data and data tools such as AppEEARS, Worldview, and Giovanni to make the most of geodetics data.

Geodetics Datasets

View All Datasets
Dataset Version Platforms Instruments Temporal Extent Spatial Extent Spatial Resolution Data Format
Very Long Baseline Interferometry (VLBI) Earth Orientation Parameters (EOP) Products from NASA CDDIS 1 GROUND-BASED OBSERVATIONS VLBI Station 2000-01-01 to Present

N: 90 S: -90 E: 180 W: -180

Text
Very Long Baseline Interferometry (VLBI) Intensive Earth Orientation Parameter (EOP-I) Series products from NASA CDDIS 1 GROUND-BASED OBSERVATIONS VLBI Station 2005-01-01

N: 90 S: -90 E: 180 W: -180

ASCII
Very Long Baseline Interferometry (VLBI) Positions Products from NASA CDDIS 1 GROUND STATIONS VLBI Station 1980-01-01 to Present

N: 90 S: -90 E: 180 W: -180

Software INdependent EXchange (SINEX)
Very Long Baseline Interferometry (VLBI) Session Earth Orientation Parameter Series (EOP-S) Product from NASA CDDIS 1 GROUND STATIONS VLBI Station 2002-02-13 to 2023-12-11

N: 90 S: -90 E: 180 W: -180

EOP Transfer Format
Very Long Baseline Interferometry (VLBI) Tropospheric Parameters (TROP) products from NASA CDDIS 1 GROUND STATIONS VLBI Station 2001-12-30 to Present

N: 90 S: -90 E: 180 W: -180

EOP Transfer Format
VIIRS/JPSS1 Day/Night Band Resolution Terrain Corrected Geolocation 6 Min L1 Swath 750m NRT 2.1 NOAA-20 VIIRS 2022-01-01

N: 90 S: -90 E: 180 W: -180

750 Meters x 750 Meters NetCDF4
VIIRS/JPSS1 Imagery Resolution Terrain Corrected Geolocation 6 Min L1 Swath 375m NRT 2.1 NOAA-20 VIIRS 2022-01-01

N: 90 S: -90 E: 180 W: -180

375 Meters x 375 Meters NetCDF4
VIIRS/JPSS1 Moderate Resolution Terrain Corrected Geolocation 6 Min L1 Swath 750m NRT 2.1 NOAA-20 VIIRS 2022-01-01

N: 90 S: -90 E: 180 W: -180

750 Meters x 750 Meters NetCDF
VIIRS/NPP Day/Night Band Terrain Corrected Geolocation L1 6-Min Swath 750 m 2 Suomi-NPP VIIRS 2012-01-19 to Present

N: 90 S: -90 E: 180 W: -180

750 Meters x 750 Meters NetCDF-4
VIIRS/NPP Imagery Resolution Terrain Corrected Geolocation 6-Min L1 Swath 375 m 2 Suomi-NPP VIIRS 2012-01-19 to Present

N: 90 S: -90 E: 180 W: -180

NetCDF-4
SHOWING 10 OF 231
Featured Geodetics Observation Method: GNSS
A Global Navigation Satellite System (GNSS) is a space geodesy technology that provides autonomous geospatial positioning around the world. One such system is the U.S. Global Positioning System (GPS), which is made up of 24 satellites, each traveling in a 12-hour orbit. A similar system is the GLObal NAvigation Satellite System (GLONASS) constellation consisting of 24 satellites. Each system is designed so that multiple satellites are within range of any point on Earth in order to precisely determine its location.

GNSS data can used to determine location and positioning around Earth as well as to study geophysics, the motions of tectonic plates and their displacements due to earthquakes, Earth orientation, and atmospheric properties among many other things.
Learn More About GNSS
image collage of satellite data images of Earth

GNSS Radio Occultation Science and Applications

Join us to learn more about Global Navigation Satellite System (GNSS) radio occultation science and applications! We will highlight science impacts in the areas of numerical weather prediction, forecasting cyclone genesis, and space weather.
Placeholder image

RINEX V3 GNSS Data Now Available at CDDIS

This update to NASA's Crustal Dynamics Data Information System (CDDIS) archive makes accessing all RINEX data easier and more transparent for the Global Navigation Satellite System (GNSS) user community.

Geodetics Data Tools

View All Data Tools
Tool Description Services
Earthdata Search Earthdata Search enables data discovery, search, comparison, visualization, and access across NASA’s Earth science data holdings. Search and Discovery, Access, Cataloging, Cloud Computing, Downloading
Worldview Worldview offers the capability to interactively browse over 1,200 global, full-resolution satellite imagery layers and download the underlying data. Analysis, Search and Discovery, Visualization, Access, Comparison, Monitoring Natural Events
SHOWING 2 OF 2

Frequently Asked Questions

Earthdata Forum

Our online forum provides a space for users to browse thousands of FAQs about research needs, data, and data applications. You can also submit new questions for our experts to answer.

Submit Questions to Earthdata Forumand View Expert Responses

Earthdata
Forum