************************************************************************ IERS Message No. 160 April 16, 2010 ************************************************************************ Journees 2010 - Second Announcement Dear Colleagues, This is to inform you that registration and abstract submission is now open on the web page of the Journees 2010 "Systemes de reference spatio-temporels" that will be held at Paris Observatory from 20 to 22 September 2010. The scientific programme will include the following sessions: Session 1: The astronomical constants, SI units and future developments in numerical standards Session 2: Solar system ephemerides and their comparison Session 3: Progress in astrometric catalogs in optical and radio wavelengths Session 4: Recent developments in theory and observation of Earth rotation and related reference systems Session 5: Pulsars timing, relativity and time transfer Note that Session 2 will be a special session for presentating the latest developments in the solar system ephemerides and comparing details in those ephemerides; it will be organized in coordination with IAU Commission 4. Oral and poster presentations on the above topics are welcome. Note that the deadline for abstract submission is 15 June 2010. For more details, registration and abstract submission, see at: http://syrte.obspm.fr/journees2010/. I hope that you will be able to participate in these Journees. Please forward this message to any colleagues who might be interested. Apologize if you receive multiple copies of this announcement. Best regards Nicole Capitaine Chair of the Journees 2010 SOC (The first announcement of the Journees 2010 was in IERS Message No. 155, available at: http://data.iers.org/products/2/13008/orig/message_155.txt.) ************************************************************************ IERS Messages are edited and distributed by the IERS Central Bureau. To subscribe or unsubscribe, please write to . Archives: http://www.iers.org/iers/publications/messages/ ************************************************************************