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Calculation of the new series of the Earth orientation parameters in the HIPPARCOS reference frame.

Vondrak, J.

The succesful lauchch of the HIPPARCOS astrometric satellite by the ESA in August 1989 enables the past observations, obtained by optical astrometry all over the world since the beginning of the century, to be re-reduced in order to get the Earth orientation parameters in a homogeneous and unique celestial reference frame. Completely new algorithm…