geodezyx

Version: 5.2.0
Date: 2026-07-15

Authors:

• Pierre Sakic (IPGP, Paris, France)
• Gustavo Mansur (GFZ, Potsdam, Germany)
• Samuel Nahmani (IPGP/IGN, Paris, France)

Documentation: https://ipgp.github.io/geodezyx

GitHub repository: https://github.com/IPGP/geodezyx

PyPi project: https://pypi.org/project/geodezyx

Contact e-mail: sakic@ipgp.fr

Citation: Sakic, P., Nahmani, S., Mansur, G.B. (2026). geodezyx: A Versatile Python Toolbox for Geodetic Data Manipulation with GNSS Processing Pedagogical Features. In: International Association of Geodesy Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/1345_2026_387

Sakic, Pierre; Mansur, Gustavo; Chaiyaporn, Kitpracha; Ballu, Valérie (2019): The geodeZYX toolbox: a versatile Python 3 toolbox for geodetic-oriented purposes. V. 4.0. GFZ Data Services. http://doi.org/10.5880/GFZ.1.1.2019.002

Licence: GNU LGPL v3 (see below)

Contributors:

• Chaiyaporn "Na" Kitpracha (GFZ, Potsdam, Germany)
• Valérie Ballu (CNRS/La Rochelle University, France)

Introduction

The purpose of geodezyx (pronounced geode-zeecks), formerly known as the GeodeZYX toolbox, is to provide all the functions which can be useful for Geodesy and Geophysics.

It includes low-level functions, file management functions, time and space-coordinates conversion functions, data (especially GNSS observations and orbits) retrieve functions, plots and visual selection functions ...

It is designed for Python 3 on a LINUX Ubuntu-like system. Also tested with Anaconda

Toolbox's highlights

• read RINEX2 and RINEX3/4 as Pandas' DataFrame
• read SINEX, SP3 & Clock RINEX as Pandas' DataFrame
• convert most time representations and time scales used in geodesy to/from Python's datetime
• convert coordinates in different frames (geographic, geocentric, topocentric)
• perform easily Helmert's Transformation
• And many more!

Installation

See the following link:
https://ipgp.github.io/geodezyx/getting_started.html#installation

Documentation

See the following link:
https://ipgp.github.io/geodezyx/

Credits

geodezyx implements several methods, algorithms... initially developed by others authors. We thank them for their work and their indirect contribution to this toolbox. Namely:

• Goudarzi, M.A., Cocard, M. & Santerre, R. EPC: Matlab software to estimate Euler pole parameters. GPS Solut 18, 153–162 (2014). https://doi.org/10.1007/s10291-013-0354-4
• Caroline Geisert, ENSTA Bretagne, for the plate motion model functions, based on Goudarzi et al.'s work.
• Yann-Treden Tranchant, LIENSs La Rochelle, for the ocean circulation model and OBP processing functions.
• Jean-Mathieu Nocquet and its PYACS toolbox for the plate motion model functions. https://github.com/JMNocquet/pyacs36
• Médéric Gravelle, CNRS/LIENSs La Rochelle, who initiate the SPOTGINS import/export functions, now grouped in spytgins module.
• Homonym logo font by Nick Curtis (https://www.nicksfonts.com/)

Licence

GNU Lesser General Public License, Version 3, 29 June 2007

geodezyx is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. The geodeZYX toolbox is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see http://www.gnu.org/licenses/.

       _____                _      ________     ____   __  _______          _ _
      / ____|              | |    |___  /\ \   / /\ \ / / |__   __|        | | |
     | |  __  ___  ___   __| | ___   / /  \ \_/ /  \ V /     | | ___   ___ | | |__   _____  __
     | | |_ |/ _ \/ _ \ / _` |/ _ \ / /    \   /    > <      | |/ _ \ / _ \| | '_ \ / _ \ \/ /
     | |__| |  __/ (_) | (_| |  __// /__    | |    / . \     | | (_) | (_) | | |_) | (_) >  <
      \_____|\___|\___/ \__,_|\___/_____|   |_|   /_/ \_\    |_|\___/ \___/|_|_.__/ \___/_/\_\

I'd rather be burned alive than to program in Perl again.
G. Mansur, 28th IUGG General Assembly, Berlin, Germany, 2023