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 Sep 22

Data Files Format

2014 Sep 22     Daily Empirical Ortho-Normal Functions

2014 Sep 22 Vertical & Slant TEC TEC Uncertainty Recent Trend Stations Used Coefficients
2330 - 2345 UTC
2315 - 2330 UTC
2300 - 2315 UTC
2245 - 2300 UTC
2230 - 2245 UTC
2215 - 2230 UTC
2200 - 2215 UTC
2145 - 2200 UTC
2130 - 2145 UTC
2115 - 2130 UTC
2100 - 2115 UTC
2045 - 2100 UTC
2030 - 2045 UTC
2015 - 2030 UTC
2000 - 2015 UTC
1945 - 2000 UTC
1930 - 1945 UTC
1915 - 1930 UTC
1900 - 1915 UTC
1845 - 1900 UTC
1830 - 1845 UTC
1815 - 1830 UTC
1800 - 1815 UTC
1745 - 1800 UTC
1730 - 1745 UTC
1715 - 1730 UTC
1700 - 1715 UTC
1645 - 1700 UTC
1630 - 1645 UTC
1615 - 1630 UTC
1600 - 1615 UTC
1545 - 1600 UTC
1530 - 1545 UTC
1515 - 1530 UTC
1500 - 1515 UTC
1445 - 1500 UTC
1430 - 1445 UTC
1415 - 1430 UTC
1400 - 1415 UTC
1345 - 1400 UTC
1330 - 1345 UTC
1315 - 1330 UTC
1300 - 1315 UTC
1245 - 1300 UTC
1230 - 1245 UTC
1215 - 1230 UTC
1200 - 1215 UTC
1145 - 1200 UTC
1130 - 1145 UTC
1115 - 1130 UTC
1100 - 1115 UTC
1045 - 1100 UTC
1030 - 1045 UTC
1015 - 1030 UTC
1000 - 1015 UTC
0945 - 1000 UTC
0930 - 0945 UTC
0915 - 0930 UTC
0900 - 0915 UTC
0845 - 0900 UTC
0830 - 0845 UTC
0815 - 0830 UTC
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 Sep 22 2356 UTC     Data from a total of 68  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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