Home | IAU Working Group | IERS / IVS Working Group

• Meetings:
• Division: I
• Active: 2006-2009
• WG Chair: Chopo Ma
• Goal: Oversee generation, validation and utility of ICRF-2; engage in formulation of resolutions of adoption by IAU
• Charter:
  • The purpose of the working group is to oversee the generation of the second realization of the ICRF from VLBI observations of extragalactic radio sources. The reference frame will apply state-of-the-art astronomical and geophysical models in the analysis of the entire relevant S/X astrometric and geodetic VLBI data set. The working group will ensure the selection of defining sources and the mitigation of source position variations and the consistency with the ITRF and the IERS EOP to improve the stability of the ICRF. The goal is to present the second ICRF at the 2009 IAU general assembly.
• Membership:
  • Alexandre Andrei, Brazil
  • Felicitas Arias, France
  • Bob Campbell, Netherlands
  • Patrick Charlot, France
  • Alan Fey, USA
  • Ed Fomalont, USA
  • Ralph Gaume, USA
  • Chopo Ma, USA (Chair)
  • Jean Souchay, France
  • Yaroslav Yatskiv, Ukraine
  • Norbert Zacharias, USA