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Data from the Wettzell ring laser gyroscope are combined with Very Long Baseline Interferometry observations in order to estimate polar motion and Universal Time with hourly resolution. The combination is done at the normal equation level. Data from the period 1 May to 14 October, 2010, are used. We find that the impact of the ring laser data is normally relatively small since presently the accuracy...
Very Long Baseline Interferometry (VLBI) is a space-geodetic technique that is uniquely capable of direct observation of the angle of the Earth's rotation about the Celestial Intermediate Pole (CIP) axis, namely UT1. The daily estimates of the difference between UT1 and Coordinated Universal Time (UTC) provided by the 1-h long VLBI Intensive sessions are essential in providing timely UT1 estimates...
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