ROB-IONO Near-Real Time European Ionospheric Maps
Last modified at Feb 16th, 2024, 14:30 GMT
Description
Vertical Total Electron Content maps based on multi-GNSS observations (GPS+Galileo+GLONASS) of the EUREF Permanent Network. The VTEC maps allow GNSS users to have an estimation of the ionospheric delay induced along the signal of the observed satellite. TEC data publicly available in IONEX files at https://gnss.be/SpaceWeather/Products/IONEX/.
Using ROB-IONO software, 5-minutes ionospheric VTEC maps are produced in near real time above Europe from the GNSS stations of the EUREF Permanent Network (EPN). To do so, the Slant Total Electron Content (STEC) of GNSS satellite-receiver pairs are estimated and projected in VTEC at the Ionospheric Piercing Points (IPP) using an ionospheric single thin layer shell approximation located at 450 km. The VTECs at the IPPs are then interpolated in a grid of 0.5°x05° using spline interpolation. Products such as orbits and satellite Differential Code Biases (DCB) are taken from the International GNSS Service (IGS) and from the Center for Orbit Determination in Europe (CODE). The receiver DCBs are estimated at ROB using Rapid Ionex of the IGS as a priori information.
How to Access This Data Collection
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HTTPS for ROB-IONO European Near Real Time TEC Maps in IONEX Files
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Ionex files are available for download in https. the filename is organised so that, ROBR[DDD][H][MM].[YY]I.gz with DDD for Day Of Year [1-365], H Capital alphabet letter corresponding to the hour (00:A, 01:B, ..., 23:X), MM minutes of the begining of the sample and YY the two last digits of the year. For example for the 25 December 2023 from 12:00 UTC to 12:05 UTC, the corresponding file is : https://gnss.be/SpaceWeather/Products/IONEX/2023/359/ROBR359M00.23I.gz" rel="nofollow">https://gnss.be/SpaceWeather/Products/IONEX/2023/359/ROBR359M00.23I.gz
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| Property | Value |
|---|---|
| Result | Not used |
| Result Time | Not used |
| Phenomenon Time | Not used |
| Observed Property | Not used |
| Editor | Royal Observatory of Belgium |
| Version | 1 |
| Created | Wednesday 15th March 2023, 14:30 |
| Last Modified | Friday 16th Feb. 2024, 14:30 |