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GPS Total Electron Content (TEC) 1-hr data

Published by NASA Space Physics Data Facility (SPDF) Data Services | National Aeronautics and Space Administration | Catalog Last Checked: June 23, 2026 at 09:11 PM | Dataset Last Updated: June 22, 2026
This date set contains total electron content (TEC) and global ionospheric maps estimated every hour by the International GNSS Service (IGS) Analysis Centre. IGS uses the averages of 4 methods, including CODE (U Bern Switzerland), ESA (ESOC Darmstadt Germany), JPL (Jet Propulsion Lab. in Pasadena USA), and UPC (U Politec. Catalonia Barcelona Spain). The data set contains rapid TEC global maps and movies of TEC (10^16 m-2) in cylindrical projection; rapid RMS maps and errors of TEC in cylindrical projection; and rapid TEC maps and movies in polar projection. Continuous coverage is not guaranteed.

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