Pre-flight planning for GNSS operations

EUROCONTROL Network Manager, in line with Article 7 paragraph 3 (g) of Commission Implementing Regulation (EU) 2019/123, monitors the performance of space based navigation infrastructure relevant for the execution of the network functions.

The objective of the GNSS monitoring service is to provide GNSS information to support the implementation and operation of PBN and other CNS navigation applications based on GNSS. This service is enabled by a tool designed for the purpose: AUGUR.

AUGUR checks the availability of GNSS for a variety of operations and informs operators of the potential outages possibly having an impact on their GNSS based operations. Using AUGUR, operators can check whether navigation aids will be available on their intended route and at their destination airport to make sure that navigating during the flight and on landing will be possible.

AUGUR functionalities include:

• GPS RAIM (Receiver Autonomous Integrity Monitoring) prediction helping airspace users anticipate potential integrity issues that could impact their flight operations (LNAV, LNAV/VNAV, RNP APCH).
• GPS RAIM NOTAM proposals containing GPS RAIM unavailability periods for airports upon request by Air Navigation Service Providers (ANSPs), those proposals can be used by national NOTAM offices to alert airspace users.
• GNSS advisories and graphical tools allowing users to check GNSS NOTAMs, aerodrome dependency on GNSS, view areas impacted by GNSS interference and monitor space weather events impacting GNSS
• Automated notifications ensuring users are alerted and can respond to potential events that may impact their GNSS operations.
• An API allowing integration with other existing systems or data sources.