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GEO PRNs swap

Thursday, August 23, 2018
GEO swap on PRNs 120 & 136

GEO 136 will be placed into the Operational Platform from 23/08/2018 at 10:00 UTC and GEO 120 will be placed into Test Platform from 30/08/2018 at 13:00 UTC, as previously announced on the Service Implementation Roadmaps. You can find here below a summary table describing the operational GEOs during the mentioned time frame:


Date & Time Operational GEOs
Until 23/08/2018 at 10:00 UTC PRN120 & PRN123
From 23/08/2018 at 10:00 UTC until 30/08/2018 at 13:00 UTC PRN120, PRN123 & PRN 136
From 30/08/2018 at 13:00 UTC until further notice PRN123 & PRN136


Please note that GEO120 will be kept on operational mode for one more week (until 30/08/2018 at 13:00 UTC) to ease the transition to the new configuration.

We encourage EGNOS Users to configure the GEO Satellites described on the table above accordingly in order to retrieve the optimal solution. Nevertheless, you can contact the EGNOS Helpdesk at, submitting an EGNOS Helpdesk form or calling at +34 911 236 555.

Moreover, the active GEO satellites are shown on the “EGNOS System Availability” Section on the homepage of the EGNOS User Support Website, as it provides real-time information on this matter. You can find further information on the GEO swap on Service Notice #15.

Should you like to manage your subscriptions on the EGNOS Documentation Notification Service, including the Service Notices, please refer to the “subscriptions” tool that will allow you to select the notifications you would like to receive.