NOTICE ADVISORY TO GALILEO USERS (NAGU)	2015010
DATE GENERATED (UTC): 2015-06-03 11:30

NAGU TYPE: GENERAL
NAGU NUMBER: 2015010
NAGU SUBJECT: LEAP SECOND 
NAGU REFERENCED TO: N/A
START DATE EVENT (UTC):	2015-06-30 23:59
END DATE EVENT (UTC): 2015-07-01 00:00
SATELLITE AFFECTED: ALL
 
EVENT DESCRIPTION: THE INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) HAS ANNOUNCED THE INTRODUCTION OF A LEAP SECOND TO OCCUR AT THE END OF JUNE 2015.

COORDINATED UNIVERSAL TIME (UTC) WILL SEQUENCE AS FOLLOWS:
 30 JUN 2015 23 HOURS 59 MINUTES 59 SECONDS
 30 JUN 2015 23 HOURS 59 MINUTES 60 SECONDS
 01 JUL 2015 00 HOURS 00 MINUTES 00 SECONDS

USERS ARE ADVISED THAT THE UTC DATA IN THE GALILEO NAVIGATION MESSAGE WILL CHANGE IN ACCORDANCE WITH OS SIS ICD (SECTION 5.1.7).

BEFORE THE LEAP SECOND
GST-UTC IS 16 (GST IS AHEAD OF UTC BY 16 SECONDS)

AFTER THE LEAP SECOND
GST-UTC WILL BE 17 (GST WILL BE AHEAD OF UTC BY 17 SECONDS)