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Description

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 observation files (un-compacted) contain one day of GPS or multi-GNSS observation (30-second sampling) data in RINEX format from a global permanent network of ground-based receivers, one file per site. More information about these data is available on the CDDIS website at https://cddis.nasa.gov/Data_and_Derived_Products/GNSS/daily_30second_data.html.

Version Description

Processing Level Definitions: https://www.earthdata.nasa.gov/learn/earth-observation-data-basics/data…

Product Summary

Platforms
Beidou ,
Galileo ,
GLONASS ,
GPS ,
GROUND STATIONS ,
QZSS ,
IRNSS
Instruments
Beidou RECEIVERS ,
Galileo RECEIVERS ,
GLONASS RECEIVERS ,
GPS RECEIVERS ,
GNSS RECEIVER ,
QZSS RECEIVERS ,
IRNSS RECEIVERS
Projects
IGS
Spatial Extent

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

Location
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
C1000000060-CDDIS
Data State
ACTIVE
Number of Files/Granules
2099863
Processing Level
1
Published
Science 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

Additional Citation

International GNSS Service, Daily 30-second observation data, Greenbelt, MD, USA:NASA Crustal Dynamics Data Information System (CDDIS), Accessed [[enter user data access date]] at doi:10.5067/GNSS/gnss_daily_o_001

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