[LEAPSECS] Leap Second Announced by IERS (fwd)

[Rob Seaman]

Oooh!  Today's my birthday.  What a lovely gift!  Just what I wanted -  
one size fits all!

(Though I bet some of you are thinking, "You really shouldn't have!" :-)

Rob
--

On Jul 4, 2008, at 5:26 AM, Richard B. Langley wrote:


> ---------- Forwarded message ----------

> Date: Fri, 4 Jul 2008 09:25:03 -0300

> From: Richard B. Langley <lang at unb.ca>

> Reply-To: Canadian Space Geodesy Forum <CANSPACE at listserv.unb.ca>,

>     Richard B. Langley <lang at unb.ca>

> To: CANSPACE at listserv.unb.ca

> Subject: Leap Second Announced by IERS

>

> [[The integer second offset between GPS System Time and UTC will  

> increase to

> 15 seconds after the leap second insertion. More info on leap  

> seconds here:

> <http://tycho.usno.navy.mil/leapsec.html>. -- RBL]]

>

>     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    : services.iers at obspm.fr

> http://hpiers.obspm.fr/eop-pc

>

>                                              Paris, 4 July 2008

>

>                                              Bulletin C 36

>

>                                              To authorities  

> responsible

> 					      for the measurement and

> 					      distribution of time

>

>

>                                   UTC TIME STEP

>                            on the 1st of January 2009

>

>

> A positive leap second will be introduced at the end of December 2008.

> The sequence of dates of the UTC second markers will be:

>

>                          2008 December 31,     23h 59m 59s

>                          2008 December 31,     23h 59m 60s

>                          2009 January   1,      0h  0m  0s

>

> The difference between UTC and the International Atomic Time TAI is:

>

>  from 2006 January 1, 0h UTC, to 2009 January 1  0h UTC  : UTC-TAI =  

> - 33s

>  from 2009 January 1, 0h UTC, until further notice       : UTC-TAI =  

> - 34s

>

> 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

>

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> ======================================================================

> Richard B. Langley                            E-mail: lang at unb.ca

> 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/

> = 

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> ======================================================================

>

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