Subject: [SIR-Mail] No.393: Reminder of upcoming leap second From: Laura Sanchez ******************************************************************************** SIR Electronic Mail 2012-06-28 12:22:53 UTC Message No. 393 ******************************************************************************** Dear ACs, See the detailed information below from the US Coast Guard about the leap second update at the end of June. FYI jake -------- Original Message -------- Subject: New NANU 2012034 Date: Wed, 30 May 2012 19:23:03 -0400 From: TIS-PF-NISWS To: NANU list server 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@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514, COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL _______________________________________________ NANU one-way mailing list NANU@cgls.uscg.mil Subscribe/Unsubscribe: http://cgls.uscg.mil/mailman/listinfo/nanu If you would like to report abuse of the CGLS listserv please send an email to: CGLSAdmin@uscg.mil _______________________________________________ IGS-ACS mailing list IGS-ACS@igscb.jpl.nasa.gov http://igscb.jpl.nasa.gov/mailman/listinfo/igs-acs -- Laura Sánchez Deutsches Geodätisches Forschungsinstitut Alfons-Goppel-Str. 11, 80539 München phone: +49 89 23031-1295 fax: +49 89 23031-1240 mailto:sanchez@dgfi.badw.de http://www.dgfi.badw.de/ ********************************************************************************