Report

 
Friday 18 July : 9 h - 10 h 30 : Reports from Services and Working Groups
 

• IERS Report (J. Vondrak, B. Richter, M. Rothacher)
•  2000-2003 Report
• IERS Workshops and Future Plans
• IVS Report (C. Ma)
• 2000-2003 Report
• Future Plans
• Precession-Nutation Working Group (V. Dehant, N. Capitaine)
• General, geophysical point of view
• Models for the ITRS motion of the CIP
• Frame bias of the PN model at J2000 in the GCRS
• Discussion

Friday 18 July : 11h -00 - 12h 30: Break  (see Commission 31 meeting)
 

Friday 18 July : 14 h -00 - 15h 30: Scientific Session

• IERS2000 Conventions: comparisons of models (nutation, UT1, etc.) with astrometric, VLBI, GPS observations
• Expressions to implement the IAU2000 definition of UT1 (N. Capitaine, P. Wallace, D.D. McCarthy)
• GAST-UT1 relation  (T. Fukushima)
• Tests of the ITRS <-> GCRS transformation based on VLBI data (A.-M. Gontier)
• Precession/nutation comparison of the IAU2000 model with combined VLBI/GPS solution (J. Vondrak)
• Recent IERS EOP/PC results in the new IAU System (D. Gambis)
• The Free Core nutation (D.D. McCarthy)
• Combination : results and prospects

 
• Role of the spatial missions (CHAMP, GRACE, etc.) for the determination of the Earth's gravitational potential and relation with Earth's rotation (H. Schuh)

• Discussion

Friday 18 July : 16 h -00 - 17 h 30: Business Meeting

• Commision 19 report to the IAU

• Validation of the Commission 19 elections: New officers, New members, Consultants

• Discussion on the future of the Commission and Commission Working Groups within the future revised by-laws of the IAU