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GNSS Resources
Earthdata resources for users working with NASA’s Global Navigation Satellite System (GNSS) data include summary reports, news announcements, and related links.
GNSS Data Summary Reports
- Weekly GNSS data holdings
- Weekly MGEX data holdings
- Mail messages
GNSS Related Links
- International GNSS Service (IGS)
- IGS Tracking Stations
- IGS Analysis Centers
- IGS Data Centers
- IGS Analysis Center Coordinator (ACC) web sites
- IGS Real-Time Service (RTS)
- IGS Multi-GNSS Experiment (MGEX), including satellite information
- GNSS system status information
- IGS data and product formats
- RINEX Version 2.11
- RINEX Version 3.03
- NOAA's Continuously Operating Reference Stations (CORS)
- UNAVCO
- GPS Seamless Archive Center (GSAC)
- Russian GLONASS Home Page
- International GLONASS Experiment (IGEX-98)
- Interactive GPS Calendar
- Earth orientation animations
Related Resources
- Guide to using IGS products
- IGS data and product formats
- ITRF solutions
- Current IGS station coordinates
- IGS site logs
- IGS antenna correction file (igs20.atx)
- IGS antenna correction file (igs14.atx)
- Spacecraft ID Correspondence Table for Orbit Exchange Files (SP3c)
GNSS Learning Resources
Learn more about about the NASA Commercial SmallSat Data Acquisition (CSDA) program vendor Spire and how to discover, access, and work with Spire data.
Webinar
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GNSS News
A summary of datasets, products, and resources released by NASA’s Distributed Active Archive Centers (DAACs) in November 2023.
News
Data from NASA’s Crustal Dynamics Data Information System help Dr. Sharyl Byram find the exact coordinates of any point on Earth.
Data User Story
More than half of Earth’s population lives in urban environments. NASA Earth science data help Dr. Kristy Tiampo explore the hazards that can impact these areas.
Data User Story
Who uses NASA Earth science data? Brian Conway, to monitor land subsidence and the impacts of this on Arizona’s water resources.
Data User Story
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Frequently Asked Questions
Earthdata Forum
Our online forum provides a space for users to browse thousands of FAQs about research needs, data, and data applications. You can also submit new questions for our experts to answer.
Submit Questions to Earthdata Forumand View Expert Responses