International Astronomical Union IERS / International VLBI Service

The Second Realization of

The International Celestial Reference Frame - ICRF2

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A joint project of the International Astronomical Union (IAU), the International Earth Rotation and Reference System Service (IERS) and the International VLBI Service for Geodesy and Astrometry (IVS).


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Last modified: Tue Sep 4 09:00:05 EDT 2007
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