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Abstract <p>Very long baseline interferometry (VLBI) is used to determine Earth’s rotation parameters. One of these is Universal Time UT1, determined in hour sessions. Accuracy for single sessions is around 50 <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\mu\)</EquationSource> <!--BPhysMGU2570128Cherniy-m1--> </InlineEquation>s. In this article, we have proved that the combined solution can increase the precision of determining UT1.</p>

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The Combined Solution for Determining Universal Time UT1 from Radio Interferometric Observations

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • D. M. Cherniy,
  • V. E. Zharov

摘要

Abstract

Very long baseline interferometry (VLBI) is used to determine Earth’s rotation parameters. One of these is Universal Time UT1, determined in hour sessions. Accuracy for single sessions is around 50 \(\mu\) s. In this article, we have proved that the combined solution can increase the precision of determining UT1.