EGNOS for Professionals

Dear EGNOS user, please note the following EGNOS status and planning information:

• The signal broadcast by the EGNOS satellites AOR-E (PRN120) and the ESA ARTEMIS satellite (PRN 124) is used for EGNOS Operations.

• The EGNOS satellite IOR-W (PRN 126) is currently used by Industry to perform various tests on the system.

Since July 2006 the operational EGNOS signal broadcast is using the MT0/2 and Band 9 of the Ionospoheric grid. The addition of MT0/2 into the system is a significant milestone in the development of EGNOS for users of non-safety of life services. MT0/2 will allow all receiver units, at their own risk, to process and use the corrections broadcast by EGNOS for multimodal non-safety of life applications. The provision of Ionospheric Band 9 improves the EGNOS performance in the Northern European latitudes. The EGNOS signal on PRN126, currently used for testing, will broadcast in MT0/0 configuration.

Aiming at promoting the technical understanding of the EGNOS system, signals and service provided, the European Space Agency has created a dedicated website called EGNOS for Professionals. This section is mainly addressed to Satellite Navigation specialists involved in satellite navigation Research and Development; universities; EGNOS performance monitoring and development of EGNOS based applications and services. Through this web page you may access some ESA dedicated services and detailed technical information on EGNOS. Specifically this web site addresses the following areas:

• Provision of real time information on EGNOS performance
• Broadcast of EGNOS messages and other useful information through the Internet using the ESA SISNET technology
• EGNOS Message Server ( EMS): the archive of EGNOS broadcasted messages
• EGNOS educational resources and tools.

When you access the specific web pages please take note about the conditions for the use, the specifications and the disclaimers provided.

N.B:  The EGNOS SIS should normally provide users with excellent accuracy performance. Until further notice, messages associated with the EGNOS SIS are not certified for Civil Aviation or other safety critical purposes. Please read in detail the disclaimer in this page for more information.