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 Jul 24

Data Files Format

2014 Jul 24     Daily Empirical Ortho-Normal Functions

2014 Jul 24 Vertical & Slant TEC TEC Uncertainty Recent Trend Stations Used Coefficients
0800 - 0815 UTC
0745 - 0800 UTC
0730 - 0745 UTC
0715 - 0730 UTC
0700 - 0715 UTC
0645 - 0700 UTC
0630 - 0645 UTC
0615 - 0630 UTC
0600 - 0615 UTC
0545 - 0600 UTC
0530 - 0545 UTC
0515 - 0530 UTC
0500 - 0515 UTC
0445 - 0500 UTC
0430 - 0445 UTC
0415 - 0430 UTC
0400 - 0415 UTC
0345 - 0400 UTC
0330 - 0345 UTC
0315 - 0330 UTC
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 Jul 24 0827 UTC     Data from a total of 70  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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