Global Navigation Satellite System (GNSS) Final Cumulative Station Positions/Velocities (no covariance matrix) Product from NASA CDDIS

Metadata Updated: December 4, 2020

This derived product set consists of Global Navigation Satellite System Final Cumulative Station Positions/Velocities (no covariance matrix) Product available from the Crustal Dynamics Data Information System (CDDIS). 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. Analysis Centers (ACs) of the International GNSS Service (IGS) retrieve GNSS data on regular schedules to produce precise orbits identifying the position and velocity of the GNSS satellites as well as precise station positions and velocities for the network of GNSS receivers. The IGS Reference Frame Coordinator uses these individual AC solutions to generate the official IGS station position/velocity product. The final products are considered the most consistent and highest quality IGS solutions and consists of daily and weekly station position and velocity files in SINEX format, generated on a daily/weekly basis by combining solutions from individual IGS ACs, approximately 11-17 days after the end of the solution week.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date November 12, 2020
Metadata Updated Date December 4, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date December 4, 2020
Publisher NASA/GSFC/SED/ESD/GGL/CDDIS
Unique Identifier Unknown
Maintainer
Identifier C1501533138-CDDIS
Data First Published 1992-01-01
Language en-US
Data Last Modified 2020-12-20
Category IGS, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Archived by National Aeronautics and Space Administration, U.S. Government, NASA/GSFC/SED/ESD/GGL/CDDIS. https://doi.org/10.5067/GNSS/GNSS_IGSCSSC_001.
Homepage URL https://doi.org/10.5067/GNSS/GNSS_IGSCSSC_001
Metadata Type geospatial
Program Code 026:001
Source Datajson Identifier True
Source Hash 990b3bfe5644621a4aa259ed8a217faf96c33d5a
Source Schema Version 1.1
Spatial -180.0 -90.0 180.0 90.0
Temporal 1992-01-01T00:00:00Z/2020-11-30T00:00:00Z

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