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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

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Dataset Sort descending	Version	Platform	Instrument	Temporal Extent	Spatial Extent	Data Format
Global Navigation Satellite System (GNSS) Final Orbit Products from NASA CDDIS	1	GLONASS, GPS	GLONASS P	1992-06-14 to Present	N: 90 S: -90 E: 180 W: -180	SP3c
Global Navigation Satellite System (GNSS) High-rate (1-second sampling, sub-hourly files) Observation Data from NASA CDDIS	1	SATELLITES, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS	COMPASSES, Galileo, GLONASS, GPS, GNSS RECEIVER, QZSS	2001-05-01 to Present	N: 90 S: -90 E: 180 W: -180	RINEX V2
Global Navigation Satellite System (GNSS) IGS Analysis Center (AC) Final Orbit/Reference Frame Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS RECEIVER, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	RINEX
Global Navigation Satellite System (GNSS) IGS Analysis Center (AC) Final Station Positions/Velocities Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	SINEX
Global Navigation Satellite System (GNSS) IGS Analysis Center (AC) Ionosphere Vertical Total Electron Content (VTEC) Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1998-01-01 to Present	N: 90 S: -90 E: 180 W: -180	IONEX
Global Navigation Satellite System (GNSS) IGS Combined Final Clock Solution Comparison Summary Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	RINEX
Global Navigation Satellite System (GNSS) IGS Combined Rapid Clock Solution Comparison Summary Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	Text format, UNIX compressed ASCII
Global Navigation Satellite System (GNSS) IGS Daily Ionosphere Vertical Total Electron Content (VTEC) Comparison Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1998-01-01 to Present	N: 90 S: -90 E: 180 W: -180	IONEX
Global Navigation Satellite System (GNSS) IGS Daily Ionosphere Vertical Total Electron Content (VTEC) Grid Fluctuation Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	2014-01-01 to Present	N: 90 S: -90 E: 180 W: -180	IONEX
Global Navigation Satellite System (GNSS) IGS Decoded Clock Solution (10-second) from IGS Real-Time Product Streams from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	2009-02-01 to Present	N: 90 S: -90 E: 180 W: -180	RINEX Extensions to Handle Clock Information
Global Navigation Satellite System (GNSS) IGS Decoded Orbit Solution (30-second) from IGS Real-Time Product Streams from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	2009-02-01 to Present	N: 90 S: -90 E: 180 W: -180	RTCM
Global Navigation Satellite System (GNSS) IGS Final Analysis Center (AC) Clock Solution Product (daily files, generated weekly) from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	RINEX
Global Navigation Satellite System (GNSS) IGS Final Analysis Center (AC) Earth Rotation Parameters (ERP) Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	IGS ERP format, UNIX compressed ASCII
Global Navigation Satellite System (GNSS) IGS Final Analysis Center (AC) Orbit Product (daily files, generated weekly) from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	SP3c
Global Navigation Satellite System (GNSS) IGS Final Analysis Center (AC) Station Positions/Velocities (no covariance matrix) product from NASA CDDIS - Cloned	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	SINEX
Global Navigation Satellite System (GNSS) IGS Final Analysis Center (AC) Troposphere Zenith Path Delay (ZPD) product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	2000-01-01 to Present	N: 90 S: -90 E: 180 W: -180	SINEX
Global Navigation Satellite System (GNSS) IGS Final Combined Earth Rotation Parameters (ERP) Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	IGS ERP
Global Navigation Satellite System (GNSS) IGS Final Combined Orbit Solution Summary Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	clock RINEX format
Global Navigation Satellite System (GNSS) IGS Final Combined Satellite and Receiver Clock Product (30 second resolution, daily files, generated weekly) from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	clock RINEX format
Global Navigation Satellite System (GNSS) IGS Final Combined Satellite and Receiver Clock Solution (5 minute resolution, daily files, generated weekly) product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	clock RINEX format
Global Navigation Satellite System (GNSS) IGS Final Combined Set of Station Coordinates Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	SINEX, UNIX compressed ASCII
Global Navigation Satellite System (GNSS) IGS Final Combined Station Position Solution Summary Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	Text, UNIX compressed ASCII
Global Navigation Satellite System (GNSS) IGS Final Combined Station Positions/Velocities Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	SINEX, UNIX compressed ASCII
Global Navigation Satellite System (GNSS) IGS Final Cumulative Combined Set of Station Coordinates Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	Text, UNIX compressed ASCII
Global Navigation Satellite System (GNSS) IGS Final Cumulative Earth Rotation Parameters (ERP) Product from NASA CDDIS	1	Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS	Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P	1992-01-01 to Present	N: 90 S: -90 E: 180 W: -180	IGS ERP

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.

image of Earthdata graphic identifier design on top of data points

Accessing Real-Time GNSS Data and Derived Products from NASA's CDDIS

Join us on Wednesday, July 22, 2015 at 2pm ET to learn how to discover and access the real-time Global Navigation Satellite System (GNSS) data!

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.

Crustal Dynamics Data Information System webinar banner image showing Global Navigation Satellite System data.avigation

GNSS Products at NASA's CDDIS for Disaster Monitoring, Crustal Deformation, Extreme Weather, and Other Applications

Join us on Sept. 28 to learn about the NASA Making Earth System Data Records (ESDR) for Use in Research Environments (MEaSUREs) Extended Solid Earth Science ESDR System (ESESES) project, whose Global Navigation Satellite System (GNSS)-derived data products enable research on tectonic motion, crustal deformation, earthquakes, tsunamis, sea level rise, extreme weather, and more!

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

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