ROB-IONO Near-Real Time European Ionospheric Maps

Royal Observatory of Belgium

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.

Interact

Interaction Method Description Data Format Link
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

Properties

Property Value
Type
Project
Data Level
Result Not used
Permission
Procedure
Role (from Related Party (1/2) > Responsible Party Info)
Party (1/2) (from Related Party (1/2) > Responsible Party Info)
Party (2/2) (from Related Party (1/2) > Responsible Party Info)
Role (from Related Party (2/2) > Responsible Party Info)
Party (from Related Party (2/2) > Responsible Party Info)
Result Time Not used
Name (from Collection Results > Source > Online Resource) HTTPS for ROB-IONO European Near Real Time TEC Maps in IONEX Files
URL (from Collection Results > Source > Online Resource > Linkage) https://gnss.be/SpaceWeather/Products/IONEX/
Protocol (from Collection Results > Source > Online Resource) HTTPS
Data Format (from Collection Results > Source > Online Resource)
Description (from Collection Results > Source > Online Resource) 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
Service Function (from Collection Results > Source > Online Resource)
Phenomenon Time Not used
Data Quality Flag (from Quality Assessment)
Metadata Quality Flag (1/5) (from Quality Assessment)
Metadata Quality Flag (2/5) (from Quality Assessment)
Metadata Quality Flag (3/5) (from Quality Assessment)
Metadata Quality Flag (4/5) (from Quality Assessment)
Metadata Quality Flag (5/5) (from Quality Assessment)
Observed Property Not used
Named Region (from Feature Of Interest > Feature Of Interest)
Information
Owner Royal Observatory of Belgium
Version 1
Created Wednesday 15th March 2023, 14:30
Last Modified Friday 16th Feb. 2024, 14:30