GSA, SESAR Deployment Manager sign MoU on EGNSS support for Air Traffic Management

13 March 2019
The GSA-SESAR Deployment Manager MoU will support the implementation of Galileo and EGNOS applications in aviation.
The GSA-SESAR Deployment Manager MoU will support the implementation of Galileo and EGNOS applications in aviation.

The European GNSS Agency (GSA) and the SESAR Deployment Manager (SDM) signed a Memorandum of Understanding at the World ATM Congress in Madrid on 13 March on future cooperation to modernise EU Air Traffic Management by leveraging Galileo and EGNOS.

Both EGNOS and Galileo can support the modernisation of EU Air Traffic Management, particularly in the areas of air navigation and surveillance. SESAR Deployment Manager (SDM) has been tasked by the European Commission to synchronise and coordinate the deployment of the Pilot Common Project as specified in the SESAR Deployment Programme. Within this programme, Performance Based Navigation and Surveillance, which rely on GNSS, are one of the six ATM functionalities. The MoU signed in Madrid details how GSA and SDM will work together to bring this about.

Important milestone

“This is an important milestone in cooperation between the GSA and SDM and one that will ensure that all aviation stakeholders reap the benefits of Europe’s investment in space,” said GSA Executive Director Carlo des Dorides.

“The GSA is looking forward to cooperating with SDM to reinforce relations with ANSPs and airlines and help them to benefit from EGNOS and Galileo,” confirmed Pascal Claudel, GSA Chief Operating Officer, who signed the MoU on behalf of the GSA.

“I am happy that today, at the World ATM Congress, the GSA and the SESAR Deployment Manager signed this cooperation agreement. This new agreement will reinforce the SDM connection with space-based technologies for ATM and CNS. Indeed, there is growing proximity between ATM and space, as space-based enablers would certainly bring an essential contribution, enabling the most critical Pilot Common Project ATM functionalities as well as CNS modernisation. This agreement materialises the fact that GSA and SDM share common objectives and have mutual interests in successful E-GNSS and SESAR deployment,” said Nicolas Warinsko, General Manager, SESAR Deployment Manager.

The first of the applications covered by the MoU is Performance Based Navigation (PBN), which aims to ensure global standardisation of Area Navigation (RNAV) and Required Navigation Performance (RNP) specifications, in an effort to limit the proliferation of navigation specifications used around the world.

The European Commission’s PBN Regulation, published in 2018, mandates the implementation of EGNOS approaches at all Europe’s runways by 2024. In suitably equipped aircraft, EGNOS enables aircraft approach procedures that are operationally equivalent to instrument landing system (ILS) ILS Cat-I procedures. The regulation also envisages a full PBN environment by 2030, leading to rationalisation of conventional procedures. For Cat II/III, work is ongoing to make Europe benefit from Ground Based Augmentation System (GBAS) Cat-II/III based on GPS and Galileo dual frequency. Going further, Europe is also investing in the next version of EGNOS, which will also augment Galileo, and the Advanced RAIM concept, also relying on both GPS and Galileo.

This is recognised as a major step in the evolution of the European navigation infrastructure by ANSP organisations.

EGNOS unlocking capacity improvements

The second area of cooperation between the GSA and SDM deals with Automatic Dependent Surveillance – Broadcast (ADS-B) Out, which is a surveillance technique that relies on aircraft broadcasting their identity, position, and other information derived from on board systems. This signal can then be received for surveillance purposes on the ground.

The current regulation mandates airspace users to be equipped by 2020, including with a GNSS receiver. While SBAS is not mandated, it is widely recognised that SBAS can unlock capacity improvements and support enhanced surveillance operations, as well as support the business case, when synchronised with navigation.

Airspace users require an integrated and synchronised strategy for navigation and surveillance, to optimise their investments, and the GSA will work together with SDM to that end. The GSA and SDM will also work together to assist air navigation service providers (ANSPs) and airlines in using EGNOS and Galileo.


In 2004 the European Union adopted the first Single European Sky (SES) legislative package meant to reform the architecture of European air traffic management (ATM) in order to meet future capacity and safety needs at European level. Updated in 2009, the SES regulatory framework consists of four pillars: regulating performance; a single safety framework; new technologies; and managing capacity on the ground.

The Single European Sky ATM Research and Development (SESAR) project represents the technological pillar of the SES. It aims to provide the EU with a high performing ATM infrastructure by 2030 that will enable the safe and environmentally friendly operation and development of air transport.

Media note: This feature can be republished without charge provided the European GNSS Agency (GSA) is acknowledged as the source at the top or the bottom of the story. You must request permission before you use any of the photographs on the site. If you republish, we would be grateful if you could link back to the GSA website (

Updated: Mar 13, 2019



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