FW: Bulletin C number 38
Olson, Arthur David (NIH/NCI) [E]
olsona at dc37a.nci.nih.gov
Mon Jul 6 16:52:46 UTC 2009
-----Original Message-----
From: IERS EOP Product Center [mailto:services.iers at obspm.fr]
Sent: Monday, July 06, 2009 12:46
To: adresc1 at arcas.obspm.fr
Subject: Bulletin C number 38
INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE
REFERENCE
SERVICE DE LA ROTATION TERRESTRE
OBSERVATOIRE DE PARIS
61, Av. de l'Observatoire 75014 PARIS (France)
Tel. : 33 (0) 1 40 51 22 26
FAX : 33 (0) 1 40 51 22 91
Internet : services.iers at obspm.fr
Paris, 4 July 2009
Bulletin C 38
To authorities
responsible
for the measurement and
distribution of time
INFORMATION ON UTC - TAI
NO positive leap second will be introduced at the end of December 2009.
The difference between Coordinated Universal Time UTC and the
International Atomic Time TAI is :
from 2009 January 1, 0h UTC, until further notice : UTC-TAI = -34 s
Leap seconds can be introduced in UTC at the end of the months of
December
or June, depending on the evolution of UT1-TAI. Bulletin C is mailed
every
six months, either to announce a time step in UTC, or to confirm that
there
will be no time step at the next possible date.
Daniel GAMBIS
Director
Earth Orientation Center of
IERS
Observatoire de Paris,
France
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