Hi, 2019!

Final Global TEC Maps ››

Running Log

  • 2019-05-25,10:30:01@IRIS is beginning to process global GNSS data on 5/23,2019(DOY:143).
  • 2019-05-25,10:30:02@IRIS is starting to download ephemeris and GNSS data.
  • 2019-05-25,10:33:25@Data are downloaded. Time consumption:3.3614 minutes.
  • 2019-05-25,10:37:11@Preprocessing is done. Time consumption:3.7596 minutes.
  • 2019-05-25,11:20:15@Data processing is completed. Time consumption:43.068 minutes.
  • 2019-05-25,11:20:15@Well done. Total consumption:50.238 minutes. IONEX products and web pages will be updated in a few minutes.
  • 2019-05-25,11:20:25@IRIS completed product visualization.
  • 2019-05-25,11:20:28@IRIS just pushed the latest products and updated the web pages.
  • 2019-05-25,11:20:28@Job final is finished. by IRIS 2.0

Run Time Statistics

Precision (Unit:TECU)

Sigma Mean residuals STD residuals RMS residuals
1.624 0.030 2.392 2.392

Global TEC Maps (Unit:TECU)


Global TEC Maps (Unit:TECU)

Satellite DCB (Unit:ns)


Frequency Distribution of Residuals (Unit:%)


Frequency Distribution of Absolute Residuals (Unit:%)


Frequency Distribution of Observed Satellites (Unit:%)



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Email: ac@ionosphere.cn

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Focus and concentration on studying ionospheric models. Implementation service of ionospheric delay correction for satellite navigation and wide-area, local-area augmentation system. A basis paltform for exploring the change rules and physical mechanism of the ionosphere.

To understand the structure and change rules of the ionosphere; To reduce the space environment risk of satellite lauch; To improve the performance of satellite navigation system and radar; To increase the reliability of radio communications; To strengthen early warning and forecasting of earthquake and tsunami.