Last updated July 18, 2019
Summary: July 11-18 Galileo Service Interruption
On July 11, 2019, the European Galileo system went down worldwide. On July 18, the issue was resolved. During the down period, Eos tested its Arrow Series™ GNSS receivers, and we confirmed that the Galileo satellites were in view but were not used. For more details on the outage, click here. For Galileo constellation satellite statuses, click here.
Service Restoration Update on July 22, from the Notice Advisory to Galileo User (NAGU)
A new Notice Advisory to Galileo User (NAGU) has been published on the GSC web portal. The notice indicates that service was fully restored. The NAGU provides information about the following event. It is re-published in full without editing here for our customers:
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2019028DATE GENERATED (UTC): 2019-07-22 17:50NAGU TYPE: GENERAL
NAGU NUMBER: 2019028
NAGU SUBJECT: SERVICE RESTORED
NAGU REFERENCED TO: 2019027
START DATE EVENT (UTC): 2019-07-22 17:00
END DATE EVENT (UTC): N/A
SATELLITE AFFECTED: ALLEVENT DESCRIPTION: THE SERVICE IS RESTORED
Service Initially Restored on July 18, according to the Notice Advisory to Galileo User (NAGU)
A new Notice Advisory to Galileo User (NAGU) has been published on the GSC web portal. The notice indicates that service was restored, but users may still experience instability. The NAGU provides information about the following event. It is re-published in full without editing here for our customers:
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2019027DATE GENERATED (UTC): 2019-07-18 08:20NAGU TYPE: GENERAL
NAGU NUMBER: 2019027
NAGU SUBJECT: SERVICE RESTORED (POTENTIAL INSTABILITY)
NAGU REFERENCED TO: 2019026
START DATE EVENT (UTC): 2019-07-17 20:52
END DATE EVENT (UTC): UNTIL FURTHER NOTICE
SATELLITE AFFECTED: ALLEVENT DESCRIPTION: THE SERVICE IS RESTORED. USERS MAY EXPERIENCE SERVICE INSTABILITY UNTIL FURTHER NOTICE
Products Affected by the July 2019 Galileo Service Interruption:
Arrow Gold, Arrow 200, Arrow 100
i.e., All Eos Arrow GNSS receivers that are configured to track Galileo signals.
Details: Galileo Service Interruption
There is currently a system advisory in place for all Galileo users. This includes users of the Arrow Gold, Arrow 200, and Arrow 100 GNSS receivers.
On July 11th, 2019, the European GNSS Agency / GSA issued an advisory that the Galileo system is down worldwide. The service interruption does not have a specified end date.
What does this mean?
Observed system behavior shows that the Galileo INAV and FNAV ephemeris data is currently not valid. During this time, Arrow GNSS receivers with Galileo capabilities will continue to track Galileo signals; however, without a valid ephemeris, the signals are not included in the position solution computed by the Arrow receivers.
Update from July 17 from GalileoGNSS.EU:
“A team of experts European GNSS Agency, industry, the European Space Agency and the European Commission is currently implementing and monitoring recovery actions for an incident related to the Galileo ground infrastructure that resulted in a temporary interruption of the Galileo Initial Services. The key objective is to restore the Galileo navigation and timing services for users as soon as possible.”
Once the Galileo service returns to normal and provides valid ephemeris data, the Galileo-capable Arrow receivers will return to normal operation with the available Galileo satellites. Please refer to the following links provided by the European Global Navigation Satellite Systems Agency for updates.