NOTICE ADVISORY TO GALILEO USERS (NAGU) YYYYNNN
DATE GENERATED (UTC): YYYY-MM-DD hh:mm

NAGU TYPE: GENERAL (TIMING USABLE)
NAGU NUMBER: YYYYNNN
NAGU SUBJECT: [GGTO or GST-UTC OFFSET] AVAILABLE AS FROM YYYY-MM-DD
NAGU REFERENCED TO: YYYYRRR
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 AVAILABLE SINCE/AS OF YYYY-MM-DD BEGINNING hh:mm UTC.