NOTICE ADVISORY TO GALILEO USERS (NAGU) YYYYNNN DATE GENERATED (UTC): YYYY-MM-DD hh:mm NAGU TYPE: GENERAL (TIMING UNP_UNUFN) NAGU NUMBER: YYYYNNN NAGU SUBJECT: [GGTO or GST-UTC OFFSET] UNAVAILABLE FROM YYYY-MM-DD UNTIL FURTHER NOTICE NAGU REFERENCED TO: N/A START DATE EVENT (UTC): YYYY-MM-DD hh:mm END DATE EVENT (UTC): N/A SATELLITE AFFECTED: ALL EVENT DESCRIPTION: USERS ARE ADVISED THAT [GGTO or GST-UTC OFFSET] IS UNAVAILABLE SINCE YYYY-MM-DD BEGINNING hh:mm UTC UNTIL FURTHER NOTICE.