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Dear colleagues,</div>
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It is our pleasure to announce the public, open-source release of <b>pytrf: a Python toolbox for the analysis of time series and terrestrial reference frames</b>, developed at IGN.</div>
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pytrf results from a progressive buildup of Python code since 2011 in the context of the IGS Reference Frame Committee and of the IERS ITRS Center, and from a complete modernization and optimization of the code in 2020-2021. Since then, it has been continuously
and collaboratively improved, and shared with researchers, students and institutions across the world.</div>
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pytrf has two main components:</div>
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<div class="elementToProof" role="presentation">a module for the analysis and modeling of (geodetic) time series,</div>
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The second component aims to succeed IGN's CATREF software, which will be no longer maintained.</div>
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pytrf is currently available, together with usage examples and documentation, at:</div>
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<a href="https://github.com/prebischung/pytrf" id="OWAacbeb82b-5589-f363-436d-4f2c31e74ac5" class="OWAAutoLink">https://github.com/prebischung/pytrf</a></div>
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But note that it will eventually be moved to IGN's GitHub repository at:</div>
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<a href="https://github.com/IGNF/pytrf" id="OWAcafb9a32-54c0-3b8d-74da-15d996c44ecd" class="OWAAutoLink" title="https://github.com/IGNF/pytrf">https://github.com/IGNF/pytrf</a></div>
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We hope that pytrf can prove useful to the geodetic community, but also welcome contributions (testing, bug reports/fixes, new features) from the community.</div>
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Best regards,</div>
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Paul Rebischung, Julien Barnéoud, Kevin Gobron, Maylis de La Serve</div>
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