L. Petrov

Optimal estimation of the Earth orientation paramreters using VLBI

                         ABSTRACT

   The problem of the best strategy for estimation of the Earth orientation
parameters using VLBI is considered. The present strategy for evaluation of 
6 parameters for each session: UT1, UT1 rate, pole coordinates, nutation 
offsets contains internal contradictions and it has known deficiencies. 
An alternative parameterization is presented. The ways of its implementation 
and some results are discussed.