Currently the SWACI services are migrated to the Ionosphere Monitoring and Prediction Center (IMPC). This may cause downtimes of several products or parts of this webpage. To get latest news and product updates please visit impc.dlr.de!

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The total electron content (TEC) is defined as the integral of the electron density n_e along the geometric line s between a satellite S and a receiver R mehr...

The TEC map related forecast algorithm takes benefit from actual trends of the TEC behaviour at each grid point mehr...