|
|
From: Richard Langley (no email)
Date: Mon Jul 04 2005 - 10:03:00 EDT
FYI.
-- Richard Langley
Professor of Geodesy and Precision Navigation
===============================================================================
Richard B. Langley E-mail:
Geodetic Research Laboratory Web: http://www.unb.ca/GGE/
Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142
University of New Brunswick Fax: +1 506 453-4943
Fredericton, N.B., Canada E3B 5A3
Fredericton? Where's that? See: http://www.city.fredericton.nb.ca/
===============================================================================
---------- Forwarded message ----------
Date: Mon, 4 Jul 2005 10:55:14 -0300
From: Richard Langley <>
To:
Subject: UTC Leap Second Announced
[[Note that the difference between UTC and GPS Time will increase from 13 to
14 seconds when the UTC leap second is implemented. This will be the first
leap second since January 1999. -- R.B.L.]]
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
e-mail :
http://hpiers.obspm.fr/eop-pc
Paris, 4 July 2005
Bulletin C 30
To authorities responsible for the measurement and distribution of time
UTC TIME STEP
on the 1st of January 2006
A positive leap second will be introduced at the end of December 2005.
The sequence of dates of the UTC second markers will be:
2005 December 31, 23h 59m 59s
2005 December 31, 23h 59m 60s
2006 January 1, 0h 0m 0s
The difference between UTC and the International Atomic Time TAI is:
from 1999 January 1, 0h UTC, to 2006 January 1 0h UTC : UTC-TAI = - 32s
from 2006 January 1, 0h UTC, until further notice : UTC-TAI = - 33s
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
Head
Earth Orientation Center of IERS
Observatoire de Paris, France
[To unsubscribe from CANSPACE, send the following message to <> (DO NOT send it to CANSPACE) using the same e-mail address you used to subscribe to CANSPACE initially: SIGNOFF CANSPACE. If you do not receive a confirmation within a day or so, re-send your request to <>.]
|