This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.23919/ENC48637.2020.9317316. This is version 3 of this Preprint.
A prototype for a Multi-GNSS orbit combination
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Authors
Pierre Sakic 
,
Gustavo Bento Mansur ,
Benjamin Männel
Abstract
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.
DOI
https://doi.org/10.31223/osf.io/kxqsc
Subjects
Astrophysics and Astronomy, Earth Sciences, Other Astrophysics and Astronomy, Other Earth Sciences, Physical Sciences and Mathematics
Keywords
clocks, combination, IGS, International GNSS Service, MGEX, Multi-GNSS, Multi GNSS EXperiment, orbits
Dates
Published: 2020-08-20 18:31
Last Updated: 2023-11-30 18:51
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