UT1 prediction based on long-time series analysis

Details UT1 prediction based on long-time series analysis UT1 prediction based on long-time series analysis

2009-12-04

arxiv.org/abs/0912.0891v1

Artificial Satellites, 2010, v. 45, No. 2, 111-118

Physics

Geophysics

3 pp., presented at the IERS Workshop on Earth Orientation Parameters Combination and Prediction, Warsaw, Poland, October 19-2

Scientific paper

10.2478/v10018-010-0012-9

A new method is developed for prediction of UT1. The method is based on construction of a general harmonic model of the Earth rotation using all the data available for the last 80-100 years, and modified autoregression technique. A rigorous comparison of UT1 predictions computed at SNIIM with the prediction computed by IERS (USNO) in 2008-2009 has shown that proposed method pro-vides substantially better accuracy.

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