Ground-Based Global Navigation Satellite System Data (30-second sampling, 24 hour files) from NASA CDDIS

Published by NASA/GSFC/SED/ESD/GGL/CDDIS | National Aeronautics and Space Administration | Metadata Last Checked: June 28, 2025 | Last Modified: 2025-03-31

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.

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Complete Metadata

bureauCode	[ "026:00" ]
identifier	C1000000060-CDDIS
issued	1992-01-01
landingPage	https://doi.org/10.5067/GNSS/GNSS_DAILY_O_001
language	[ "en-US" ]
programCode	[ "026:001" ]
spatial	-180.0 -90.0 180.0 90.0
temporal	1992-01-01T00:00:00Z/2022-01-17T00:00:00Z
theme	[ "IGS", "geospatial" ]