Name: Ground-Based Global Navigation Satellite System (GNSS) Data (1-second sampling, real-time streams) from NASA CDDIS
Creator: CDDIS
Keywords: Country/Regional Coordinate Reference System,Global Coordinate Reference System,Ellipsoid Characteristics,Geoid Characteristics,Control Surveys,Gravity,Annual Elliptical Component,Chandler Circular Component,Rotational Rate/Speed,Angle Of Elevation,Angle Of Inclination,Orbit Type,Orbit Velocity,Orbital Position,Earthquake Magnitude/Intensity,Crustal Motion Direction,Crustal Motion Rate,Fault Movement Direction,Fault Movement Rate,Plate Boundaries,Strain

Data at a Glance

Description

Global Navigation Satellite System (GNSS) real-time 1 to multi-second sampled data available from the Crustal Dynamics Data Information System (CDDIS). Global Navigation Satellite System (GNSS) provide autonomous geo-spatial positioning with global coverage. GNSS real-time 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). 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) are similar to the U.S. GPS in terms of the satellite constellation, orbits, and signal structure; CDDIS began streaming real-time data from these systems in 2015. The real-time observation data from a global permanent network of ground-based receivers are transmitted from the CDDIS in 1 to multi-second intervals in raw receiver or RTCM (Radio Technical Commission for Maritime Services) format.

Product Summary

Platforms

Beidou,

GLONASS,

GPS,

GROUND STATIONS,

Galileo,

IRNSS,

QZSS

Instruments

Beidou P,

GLONASS P,

GNSS RECEIVER,

GPSP,

Galileo P,

IRNSS P,

QZSS P

Spatial Extent

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

Geographic Region

GLOBAL

Coordinate System

CARTESIAN

Granule Spatial Representation

CARTESIAN

Temporal Extent

1992-01-01 to Present

Data Partner

Crustal Dynamics Data Information System, Geodesy and Geophysics Laboratory, Earth Sciences Division, Sciences and Exploration Directorate, Goddard Space Flight Center, NASA (CDDIS)

Concept ID

c1291967305-cddis

Data State

ACTIVE

Processing Level

Published

2016-08-03

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Select a Citation Style:

International GNSS Service (IGS). (2007). Real-time GNSS observation data streams [Data set]. NASA Crustal Dynamics Data Information System. https://doi.org/10.5067/GNSS/GNSS_REALTIME_D_001 Date Accessed: 2025-07-04

Documents

GENERAL DOCUMENTATION

URL for more information about GNSS real-time data streams

Learning Resources

View All Learning Resources

Filters

No Results

Items