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IVS Combination

On the following pages, you will find a comparison between the individual solutions of the Analysis Centers with respect to the IVS combination. The IVS combination contains the full set of Earth Orientation Parameters (EOP):

  • X-Pole
  • Y-Pole
  • UT1-UTC
  • X-Pole Rate
  • Y-Pole Rate
  • LOD
  • dX
  • dY

with respect to IAU 2006/2000A precession-nutation model.

The IVS combination is a weighted accumulating of the datum-free normal equation matrices of the Analysis Centers.

The comparison is embedded in an interactive tool containing data since 1983. The values are smoothed by a moving median. The subset size of the sliding window is ±35 days and is shifted forward each 7 days. The user is free to display the graphics of the individual solution and to choose the time-spans.

The statistics table is updated according to the chosen data set(s).

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