Proposing IAU Division : Division I (Fundamental Astronomy);  Other supporting divisions : IV (Stars), X (Radio Astronomy)

  Proposing IAU Commission : 19 (Rotation of the Earth); Joint Discussion of Commissions : 4 (Ephemerides), 8 (Astrometry)  and 19

  Other Supporting Organization : IAG (International Association of Geodesy

  Scientific Organizing Committee : G. Beutler (Switzerland), N. Capitaine (France), J. Chapront (France), V. Dehant (Belgium),
  T. Fukushima (Japan), R. Gaume (USA), C. Ma (USA), Z. Malkin (Russia),  D. D. McCarthy (USA, Co-Chair), F. Mignard (France, Co-Chair),
  M. Soffel (Germany), J. Souchay (France),  M. Standish (USA), Wenjing Jin (China),  J. Vondrak (Czech R)

  Scientific Rationale
  The International Celestial Reference System (ICRS) has recently been redefined with the adoption  of an International Celestial  Reference
  Frame (ICRF) and revised concepts and models to access the system.  The ICRF is a radio reference frame and the current  realization in
  optical wavelengths is the HIPPARCOS Catalogue. Maintenance and improvement of the ICRF requires continuing, coordinated  observations.
  Extension and densification of the system to other wavelengths remains as a work to be accomplished. It is also necessary at this  time to
  anticipate the maintenance and extension of the ICRF to meet future needs.  The models currently used in the definition of the system also
  require maintenance to ensure that they are able to meet improving observational accuracy in all wavelengths. The potential significant improvement
  of reference frames from the results of future space astrometry missions requires planning for the long-term realization of the ICRS.

PROGRAMME

  Session 1 :  International Celestial Reference Frame

0900-0910 INTRODUCTION  
0910-0930 A. Fey & J. Souchay: STATUS OF THE INTERNATIONAL CELESTIAL REFERENCE FRAME 
0930-0950 C. Ma: POTENTIAL REFINEMENT OF THE ICRF

0950-1000 O. Titov: ICRF SOLUTION BY GEOSCIENCE AUSTRALIA IVS ANALYSIS CENTER 
1001-1010 Y. Yatskiv et al.: CONSISTENCY CHECK OF ICRF BY COMPARING WITH GAOUA CATALOGUES 
1010-1020 A.M. Gontier & M. Feissel: CONTRIBUTION OF STABLE RADIO SOURCES TO ICRF IMPROVEMENT 
1020-1030 M. Hosokawa et al.:  ASTROMETRIC MICROLENSING AND DEGRADATION OF REFERENCE FRAMES

  Session 2 :  Extension of the International Celestial Reference Frame

1100-1120 C. Jacobs et al.: EXTENDING THE ICRF TO HIGHER RADIO FREQUENCIES: 24 & 43 GHZ 
1120-1140 S. Urban: DENSIFICATION OF THE ICRF/HCRF IN VISIBLE WAVELENGTHS 
1140-1200 N. Zacharias et al.: EXTENDING THE ICRF INTO THE INFRARED: 2MASS-UCAC ASTROMETRY 
1200-1210 G. Pinigin et al.: ABOUT PROGRESS OF LINK OPTICAL-RADIO SYSTEMS  
1210-1230 P. Charlot: SOURCE STRUCTURE

   
    Session 3 :  Models

1400-1420 V. Dehant: GEOPHYSICAL NUTATION MODEL 
1420-1440 P. Wallace: PRACTICAL CONSEQUENCES OF IMPROVED PRECESSION-NUTATION MODEL 
1440-1450 D. McCarthy & G. Petit: IERS CONVENTIONS 
1450-1500 T. Fukushima: NEW DETERMINATION OF PRECESSION FORMULAS 
1500-1510 M. Soffel et al.: ICRS, ITRS AND THE IAU RESOLUTIONS CONCERNING RELATIVITY 
1510-1520 J. Vondrak: EARTH ORIENTATION CATALOGUE - AN IMPROVED REFERENCE FRAME 
1520-1530 I. Platais: ASTROMETRY WITH LARGE UN-ASTROMETRIC TELESCOPES

    Session 4 :  Space-Based Astrometry and Dynamical Reference Frames

1600-1615 R. Gaume: STATUS OF SPACE-BASED ASTROMETRIC MISSIONS 
1615-1630 F. Mignard: FUTURE SPACE-BASED CELESTIAL REFERENCE FRAME 
1630-1640 W. Zharov et al.: ASTROMETRIC GOALS OF THE RADIOASTRON MISSION 
1640-1655 J. Kovalevsky: MISLEADING PROPER MOTIONS OF GALACTIC OBJECTS AT MUAS LEVEL 
1655-1710 M. Standish: RELATING THE DYNAMICAL FRAME AND THE EPHEMERIDES TO THE ICRF 
   
    Discussion

1710-1725 K. Seidelmann
1725-1815 Discussion

1 Wang Wen-Jun:  Celestial three-pole rotations of the Earth

2 Hu Hui:   Optical positions of 55 radio stars

3 W. Dick:  The ICRS and the IERS information system

4 V. Martin:  Ground-based astrometry : optical-radio connection

5 P.C. Rocha Poppe: Relativistic reference systems transformations

6 E. Khrutskaya:  Pul-3 catalog of 58483 stars on the Tycho-2 system

7 I. Kumkova:  ICRS-ITRS connection consistent with IAU(2000) resolutions

8 E. Pitjeva:  The planetary ephemerides EPM and their orientation to ICRF

9 M. Stavinschi: Report of the WG : Future development of ground-based astrometry

10 B. Bucciarelli: Astrometric measurements of radio-stars optical counterparts

11 M. Stavinschi: Reference frames and ground-based astometry

12 S. Lambert:  Coupling between the Earth's rotation rate and nutation

13 G. Bourda:  Temporal gravity field and modelisation of Earth rotation

14 G. Damljanovic:  ICRF densification via Hipparcos-2MASS cross identification

15 F. Mitsumi:  On the construction of radio reference frame using VERA

16 A. Fey:  Extending the ICRF to higher frequencies : imaging results

17 P. Fedorov:  The star positions and proper motions of stars around ERS

18 T. Yano:  Japanese astrometry satellite mission - JASMINE project

19 M. Zacharias:  The USNO extragalactic reference frame link program

20 A. Kahrin:  An-all wave classification and principle astrometry problem

21 D. Boboltz:  Testing the Hipparcos/ICRF link using radio-stars

22 J. Souchay:  Numerical approach to the free rotation of celestial bodies

23 G. Kaplan:  Another look at non-rotating origins

24 O. Roopesh:  IDV sources as ICRF sources : viability and benefits

25 O. Roopesh:  USNO/ATNF astrometry and imaging of southern ICRF sources

26 F. Bustos:  CDD-based astrometric measurements of photographic plates

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