NOTICE ADVISORY TO GALILEO USERS (NAGU) 2014034 DATE GENERATED (UTC): 2014-09-22 14:15 NAGU TYPE: GENERAL NAGU NUMBER: 2014034 NAGU SUBJECT: GROUND SEGMENT UPGRADE NAGU REFERENCED TO: N/A START DATE EVENT (UTC): 2014-09-03 00:00 END DATE EVENT (UTC): 2014-11-30 23:59 SATELLITE AFFECTED: ALL EVENT DESCRIPTION: DUE TO ON-GOING GROUND SEGMENT UPGRADES, USERS ARE ADVISED OF POTENTIAL PERFORMANCE DEGRADATION FROM 2014-09-03 UNTIL 2014-11-30. DURING THIS PERIOD, OCCASIONAL JUMPS ON GALILEO SYSTEM TIME MAY BE OBSERVED. THE BROADCAST GST – UTC AND GGTO PARAMETERS SHALL NOT BE USED. PERIODS OF SIGNAL UNAVAILABILITY WILL BE NOTIFIED IN DUE COURSE