Hi, 2019!

Rapid Global TEC Maps ››

Running Log

  • 2019-02-20,06:30:01@IRIS is beginning to process global GNSS data on 2/19,2019(DOY:050).
  • 2019-02-20,06:30:02@IRIS is starting to download ephemeris and GNSS data.
  • 2019-02-20,06:32:44@Data are downloaded. Time consumption:2.7019 minutes.
  • 2019-02-20,06:35:20@Preprocessing is done. Time consumption:2.5970 minutes.

Run Time Statistics

Precision (Unit:TECU)

Sigma Mean residuals STD residuals RMS residuals
3.009 0.006 3.930 3.930

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

Phone: +86 16601168599


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.