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\begin{document}

\title{Analysis of IGS repro3 Station Position Time Series}



\author[1]{Paul Rebischung}%
\author[2]{Xavier Collilieux}%
\author[1]{Laurent Metivier}%
\author[2]{Zuheir Altamimi}%
\author[2]{Kristel Chanard}%
\affil[1]{Université de Paris}%
\affil[2]{Université de Paris, Institut de physique du globe de Paris, CNRS, IGN}%


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  \date{June 15, 2024}


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\begin{abstract}
The IGS contribution to ITRF2020, based on the third IGS reprocessing
campaign (repro3), comprises daily position estimates for 1905 globally
distributed GNSS stations. As an essential step of the ITRF2020
preparation, a detailed analysis of the IGS repro3 station position time
series has been carried out, including identification of offsets,
modeling of post-seismic displacements, confrontation with deformation
predicted by geophysical loading models, and characterization of
systematic and random errors. This presentation covers the different
aspects of this analysis, the methods used and the lessons learned.%
\end{abstract}%



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