[time-nuts] Fwd: CGSIC: FW: New NANU 2012034

[Magnus Danielson]

Fellow time-nuts,

I thought you would like to see this news.

Cheers,
Magnus

-------- Original Message --------
Subject: CGSIC: FW: New NANU 2012034
Date: Fri, 1 Jun 2012 11:31:52 -0400
From: Civil Global Positioning System Service Interface Committee 
(CGSIC) <cgsic at cgls.uscg.mil>
Reply-To: cgsic at cgls.uscg.mil
To: <cgsic at cgls.uscg.mil>

All CGSIC:
     The GPS program has released their NANU announcing the upcoming 
Leap Second at the end of June.


NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2012034
SUBJ: LEAP SECOND
1.  CONDITION: THE INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS
     SERVICE (IERS) HAS ANNOUNCED THE INTRODUCTION OF A LEAP SECOND TO
     OCCUR AT THE END OF JUN 2012

2.  COORDINATED UNIVERSAL TIME (UTC) WILL SEQUENCE AS FOLLOWS:
              30 JUN 2012 23 HOURS 59 MINUTES 59 SECONDS
              30 JUN 2012 23 HOURS 59 MINUTES 60 SECONDS
              01 JUL 2012 00 HOURS 00 MINUTES 00 SECONDS

3.  FOR GPS, AS WITH PREVIOUS LEAP SECOND UPDATES, THE UTC DATA IN
     THE NAVIGATION MESSAGE WILL CHANGE IN ACCORDANCE WITH IS-GPS-200.

     BEFORE THE LEAP SECOND
     GPS-UTC IS 15 (GPS IS AHEAD OF UTC BY 15 SECONDS)

     AFTER THE LEAP SECOND
     GPS-UTC WILL BE 16(GPS WILL BE AHEAD OF UTC BY 16 SECONDS)

4.  POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
     MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, 
DSN 560-2541,
     COMM 719-567-2541, gpsoperationscenter at us.af.mil, 
HTTPS://GPS.AFSPC.AF.MIL
     MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514,
     COMM 805-606-3514, JSPOCCOMBATOPS at VANDENBERG.AF.MIL

Please let me know if you have any questions.
V/R
Rick Hamilton
CGSIC Executive Secretariat
GPS Information Analysis Team Lead
USCG Navigation Center
703-313-5930



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