Satellite
FORECAST SOL: Normal green MAG: Moderate yellow ION: Normal green Looking for something? Site search go to search page
HomeSatelliteTotal Electron ContentGPS L1 Iono Error Tuesday, Sep 27 2016 08:42 UT
Total Electron Content

GPS L1 Iono Error

Updates: Every 60 minutes

 GPS L1 Iono Error Map

This near-real-time map shows the estimated GPS positioning error, in metres of L1, resulting from the difference between the GPS broadcast Klobuchar model of ionospheric delay and the best current estimate of 'true' ionosheric delay, as observed by SWS.

It is therefore representative of the ionospheric contribution to GPS position error for single-frequency GPS, which at mid-latitudes typically ranges between 1 and 5m. Both enhancements and depressions of the ionosphere can result in reduced GPS positioning accuracy.

The map shows colour contours of position error at GPS L1 (ie single frequency), in units of metres.

This product is new and under ongoing development, and your feedback is valuable to us. If you have a comment on this product, or a suggestion on ways we may improve this product or our ionospheric services in general, please contact SWS.

go to top of page