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The Construction of ICRF2 and Its Impact on the Terrestrial Reference Frame

  • D. Gordon
  • K. Le Bail
  • C. Ma
  • D. MacMillan
  • S. Bolotin
  • J. Gipson
Conference paper
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 139)

Abstract

The construction of the second realization of the International Celestial Reference Frame by VLBI (ICRF2) was undertaken to take advantage of the many improvements in geodetic and astrometric VLBI and the vast increase in data since the first ICRF. The impact the switch to ICRF2 has had on the terrestrial reference frame and EOP solutions generated by VLBI is very small, at about the mm level, and should be transparent to most users of VLBI products.

Keywords

ICRF2 VLBI Terrestrial reference frame Earth orientation parameters Celestial reference frame Quasars 

Notes

Acknowledgements

We would like to thank the International VLBI Service for Geodesy and Astrometry (IVS) and all its components, which have made the ICRF2 and this study possible. This study was funded at the Goddard Space Flight Center under NASA contract NNG07HW11C. We also thank the National Radio Astronomy Observatory (NRAO) for VLBA observing time and support which greatly improved the quantity and quality of the data used in the ICRF2 and in this study. NRAO is an NSF facility operated under cooperative agreement by Associated Universities, Inc.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • D. Gordon
    • 1
  • K. Le Bail
    • 1
  • C. Ma
    • 2
  • D. MacMillan
    • 1
  • S. Bolotin
    • 1
  • J. Gipson
    • 1
  1. 1.NVI Inc; Code 698, NASA/GSFCGreenbeltUSA
  2. 2.Code 698, NASA/GSFCGreenbeltUSA

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