NOTICE ADVISORY TO GALILEO USERS (NAGU) 2023021 DATE GENERATED (UTC): 2023-03-25 21:35 NAGU TYPE: USABLE NAGU NUMBER: 2023021 NAGU SUBJECT: USABLE AS FROM 2023-03-25 NAGU REFERENCED TO: 2023015 START DATE EVENT (UTC): 2023-03-25 19:24 END DATE EVENT (UTC): N/A SATELLITE AFFECTED: GSAT0217 SPACE VEHICLE ID: 27 SIGNAL(S) AFFECTED: ALL EVENT DESCRIPTION: GALILEO SATELLITE GSAT0217 (ALL SIGNALS) IS USABLE SINCE/AS OF 2023-03-25 BEGINNING 19:24 UTC. PAYLOAD ON PHM CLOCK. GALILEO SATELLITE GSAT0217 (ALL SIGNALS) WAS UNAVAILABLE FROM 2023-03-21 BEGINNING 03:30 UTC.