The Potsdam Open Source Radio Interferometry Tool (PORT)

authored by

H. Schuh, R. Heinkelmann, G. Beyerle, J. M. Anderson, K. Balidakis, S. Belda, S. Dhar, S. Glaser, O. S. Jenie, M. Karbon, C. Kitpracha, P. Kurec Nehbit, L. Liu, S. Lunz, N. Mammadaliyev, S. Modiri, T. J. Nilsson, S. Raut, B. Soja, J. Wang, M. H. Xu

Abstract

The Potsdam Open Source Radio Interferometry Tool (PORT) is the very long baseline interferometry (VLBI) analysis software developed and maintained at the GFZ German Research Centre for Geosciences. Chiefly, PORT is tasked with the timely processing of VLBI sessions and post-processing activities supporting the generation of celestial and terrestrial reference frames. In addition, it serves as a framework for research and development within the GFZ’s VLBI working group and is part of the tool set employed in educating young researchers. Starting out from VLBI group delays, PORT estimates station and radio sources positions, as well as Earth orientation parameters, tropospheric parameters, and station clock offsets and drifts. The estimation procedures take into account all the necessary data analysis models that were agreed on for contributing to the ITRF2020 processing activities. The PORT code base is implemented in the MATLAB® and Python programming languages. It is licensed under the terms of the GNU General Public License and available for download at GFZ’s Git server git. gfz-potsdam.de/vlbi-data-analysis/port.

Type

Article

Journal

Publications of the Astronomical Society of the Pacific

Volume

133

ISSN

0004-6280

Publication date

19.10.2021

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Astronomy and Astrophysics, Space and Planetary Science

Electronic version(s)

https://doi.org/10.1088/1538-3873/ac299c (Access: Open)

BibTeX

@article{69f9f9f146394375ae64b2a34fde49c1,
title = "The Potsdam Open Source Radio Interferometry Tool (PORT)",
abstract = "The Potsdam Open Source Radio Interferometry Tool (PORT) is the very long baseline interferometry (VLBI) analysis software developed and maintained at the GFZ German Research Centre for Geosciences. Chiefly, PORT is tasked with the timely processing of VLBI sessions and post-processing activities supporting the generation of celestial and terrestrial reference frames. In addition, it serves as a framework for research and development within the GFZ{\textquoteright}s VLBI working group and is part of the tool set employed in educating young researchers. Starting out from VLBI group delays, PORT estimates station and radio sources positions, as well as Earth orientation parameters, tropospheric parameters, and station clock offsets and drifts. The estimation procedures take into account all the necessary data analysis models that were agreed on for contributing to the ITRF2020 processing activities. The PORT code base is implemented in the MATLAB{\textregistered} and Python programming languages. It is licensed under the terms of the GNU General Public License and available for download at GFZ{\textquoteright}s Git server https://git. gfz-potsdam.de/vlbi-data-analysis/port.",
keywords = "Astrometry (80), Astronomy data analysis (1858), Unified Astronomy Thesaurus concepts: Very long baseline interferometry (1769)",
author = "H. Schuh and R. Heinkelmann and G. Beyerle and Anderson, {J. M.} and K. Balidakis and S. Belda and S. Dhar and S. Glaser and Jenie, {O. S.} and M. Karbon and C. Kitpracha and Nehbit, {P. Kurec} and L. Liu and S. Lunz and N. Mammadaliyev and S. Modiri and Nilsson, {T. J.} and S. Raut and B. Soja and J. Wang and Xu, {M. H.}",
note = "Funding information: Research development for PORT was funded partially by the German Research Foundation (ECORAS-2, SCHU 1103/7-2 and HE5937/2-2). K.B. was funded by the Deutsche For-schungsgemeinschaft (DFG, German Research Foundation)— Project-ID 434617780—SFB 1464 (TerraQ). M.H.X. was supported by the Academy of Finland project No. 315721. S.B. was supported by Generalitat Valenciana SEJIGENT program (SEJIGENT/2021/001). The PORT source code is based on VieVS@GFZ which itself is a fork branched off from VieVS in 2012. In addition, the code contains MATLAB{\textregistered} adaptions of a significant number of IERS library functions (Petit & Luzum 2010) and modified GNU Octave (Eaton et al. 2008; Hansen 2011) routines. Software routines from the International Astronomical Union (IAU) SOFA Collection were used. Copyright {\textcopyright}International Astronomical Union Standards of Fundamental Astronomy (https://www.iausofa.org) (IAU SOFA Board 2021). Source code written by or adapted from D. Agnew, Julien Bect, Johannes B{\"o}hm, Sigrid B{\"o}hm (n{\'e}e Englich), Maximilien Chaumon, John R. D{\textquoteright}Errico, Daniel Gambis, Kurt Hornik, Paul Kienzle, Hana Kr{\'a}sn{\'a} (n{\'e}e Spicakova), Klemens Lagler, Daniel Landskron, Lucia MacCallum (n{\'e}e Plank), Matthias Madzak, Oliver Montenbruck, Vahab Nafisi, Andrea Pany, Sean Reilly, Beth E. Stetzler, Jing Sun, Kamil Teke, Volker Tesmer, Claudia Tierno Ros, Oleg Titov, Rik Wehbring, Nestor Zarraoa and Nataliya Zubko are acknowledged. We thank the anonymous reviewer for his/her comments and corrections.",
year = "2021",
month = oct,
day = "19",
doi = "10.1088/1538-3873/ac299c",
language = "English",
volume = "133",
journal = "Publications of the Astronomical Society of the Pacific",
issn = "0004-6280",
publisher = "Institute of Physics Publishing",
number = "1028",
}