A prototype for a Multi-GNSS orbit combination

This is a Preprint and has not been peer reviewed. This is version 2 of this Preprint.


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Pierre Sakic , Gustavo Bento Mansur , Benjamin Männel 


Since 1994, the International GNSS Service (IGS) provides a combination of orbit and clock offset products from its different Analysis Centers. These products are used as input by many software for countless scientific and/or operational applications. They can also be used as an independent reference for benchmark experiments. Nevertheless, those products include GPS-only data, despite the fact that nowadays several GNSS constellations are available.
We performed modifications on the existing IGS combination software and made it compatible with multi-GNSS products. We present here the results of a combination of five Multi-GNSS Experiment Analysis Centers (ACs) for five constellations (GPS + GLONASS + Galileo + Beidou + QZSS) from GPS week 1800 to 2000. The RMS of combined orbit w.r.t. input ACs ones are ~ 3±1.5cm for recent weeks of the test period.




Astrophysics and Astronomy, Earth Sciences, Other Astrophysics and Astronomy, Other Earth Sciences, Physical Sciences and Mathematics


clocks, combination, IGS, International GNSS Service, MGEX, Multi-GNSS, Multi GNSS EXperiment, orbits


Published: 2020-08-21 00:31

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CC BY Attribution 4.0 International

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