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IERS Message No. 155                                   December 19, 2009
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Journees 2010 - First Announcement


The Journees 2010 "Systemes de reference spatio-temporels", with the
sub-title "New challenges for reference systems and numerical standards
in astronomy", will be organized at Paris Observatory (France), from 20
to 22 September 2010 (Monday to Wednesday).


Scientific Organizing Committee
-------------------------------

A. Brzezinski, Poland; N. Capitaine, France (Chair); V. Dehant, Belgium;
C. Hohenkerk, UK; I. Kumkova, Russian Federation; D.D. McCarthy, USA;
M. Soffel, Germany; J. Souchay, France; J. Vondrak, Czech R.;
Ya. Yatskiv, Ukraine


Local Organizing Committee
--------------------------

P. Baudoin, O. Becker, N. Dimarcq (Chair), D. Gambis, A.-M. Gontier,
S. Lambert, M. Pailler, J.-Y. Richard


Scientific objectives
---------------------

The main purpose of these series of international meetings is to provide
a forum for advanced discussion in the fields of space and time
reference systems, Earth rotation, solar system ephemerides, astrometry
and time.

The Journees 2010 will be focused on the issues related to the recent 
developments and new challenges in astronomical space and time reference 
systems and their relativistic aspects, astrometric catalogs, Earth 
orientation, astronomical constants and numerical standards, planetary 
ephemerides and modern astrometry.

There will be presentations and discussions related to the IAU Working 
Groups, such as "Numerical Standards for Fundamental Astronomy" (NSFA), 
or Division 1 commissions.


Practical information and submission of abstracts
-------------------------------------------------

The web page of the Journees 2010 is available at 
http://syrte.obspm.fr/journees2010/.

It contains a general description of the Journees, the addresses for
contact, the rationale of the Journees 2010, the preliminary programme,
links to the list of the previous Journees and the Proceedings of the
Journees 2003 to 2008.

The Journees 2010 web page will be updated regularly in order to contain
the up-to-date information regarding the programme, participants and
practical information.

On-line registration and instructions for submitting an abstract will be
posted shortly.


Preliminary Scientific programme
--------------------------------

The scientific programme of the Journees 2010 will include sessions
devoted to:

Recent achievements and challenges for:
    - astrometric catalogues (optical and radio)
    - SI units, astronomical constants and numerical standards
    - relativity and reference systems
    - planetary ephemerides and their comparison
    - pulsars timing and time transfer
    - theory and observations of Earth orientation
    - educational efforts in relativistic astrometry and celestial
      mechanics

Oral and poster presentations proposals are encouraged on all these
topics.


Contact
-------

Nicole Capitaine
SYRTE, Observatoire de Paris,
61, avenue de l'Observatoire, 75014, Paris, France;
phone: 33 1 40 51 22 31; fax: 33 1 40 51 22 91;
e-mail: n.capitaine@obspm.fr

or: e-mail: loc.journees2010@obspm.fr

(For any e-mail related to the Journees 2010, please use the subject
"Journees 2010")


Nicole Capitaine
on behalf of the SOC of the Journees 2010


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