Real-time US-Total Electron Content: Vertical and Slant

Presented by the NOAA/Space Weather Prediction Center

Vertical and Slant Total Electron Content, TEC uncertainty, Difference from 10-day average, GPS stations used, Coefficients, and Daily Empirical Ortho-Normal Functions in the calculations for 2014 Aug 23

Data Files Format

2014 Aug 23     Daily Empirical Ortho-Normal Functions

2014 Aug 23 Vertical & Slant TEC TEC Uncertainty Recent Trend Stations Used Coefficients
0300 - 0315 UTC
0245 - 0300 UTC
0230 - 0245 UTC
0215 - 0230 UTC
0200 - 0215 UTC
0145 - 0200 UTC
0130 - 0145 UTC
0115 - 0130 UTC
0100 - 0115 UTC
0045 - 0100 UTC
0030 - 0045 UTC
0015 - 0030 UTC
0000 - 0015 UTC

Updated: 2014 Aug 23 0326 UTC     Data from a total of 74  real-time GPS stations from the CORS , GPS/Met, and IGS networks are used for these calculations.

US-TEC provides vertical TEC and slant path values of the line-of-sight electron content to the GPS satellites in view at the time. Note that TEC values in regions outside of the CONUS have no data and should be treated with caution. This ionospheric product is designed to estimate the signal delay for single and dual frequency GPS applications. US-TEC products are provided for today and yesterday, prior to yesterday please go to NGDC.

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