Name: Ground-Based Global Navigation Satellite System Data (30-second sampling, 24 hour files) 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

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.

Product Summary

Platforms

Beidou,

GLONASS,

GPS,

GROUND STATIONS,

Galileo,

IRNSS,

QZSS

Instruments

Beidou RECEIVERS,

GLONASS RECEIVERS,

GNSS RECEIVER,

GPS RECEIVERS,

Galileo RECEIVERS,

IRNSS RECEIVERS,

QZSS RECEIVERS

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

c1000000060-cddis

Data State

ACTIVE

Processing Level

Published

1992-01-01

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

Documents

GENERAL DOCUMENTATION

URL for more information about GNSS data and products

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