EGU25-14680, updated on 15 Mar 2025
https://doi.org/10.5194/egusphere-egu25-14680
EGU General Assembly 2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
BDS and QZSS in CODE's final solution -- assessment of the impact 
Rolf Dach1, Elmar Brockmann1, Daniel Arnold1, Maciej Kalarus1, Martin Lasser1, Stefan Schaer2, Pascal Stebler1, and Adrian Jäggi1
Rolf Dach et al.
  • 1University of Bern, Astronomical Institute, Bern, Switzerland (rolf.dach@aiub.unibe.ch)
  • 2Federal Office of Topography swisstopo, Wabern, Switzerland

CODE (Center for Orbit Determination in Europe) acts as one of the analysis centers of the International GNSS Service (IGS). One of the most important products are the final series providing -- among others -- GNSS satellite orbits, satellite clock corrections and station coordinates. Currently it includes GPS, GLONASS, and Galileo satellites. The final solution series shall provide the user community a direct access to the IGS20 reference frame (the IGS-specific realization of the ITRF2020).

Regarding this purpose, the extension of the final products to other systems, in particular BDS and QZSS need a careful consideration not to degrade the access to the reference frame. We present a step-by-step inclusion of BDS (only satellites in MEO orbits) and all BDS satellites (apart from those ones in GEO orbits) using the new combined satellite antenna offsets recently computed by the IGS. Another investigation is related to the QZSS satellites where pre-launch satellite antenna calibrations are available.

As a result of the study, a potential extension of the CODE final solution series to a more complete multi-GNSS product is decided. 

How to cite: Dach, R., Brockmann, E., Arnold, D., Kalarus, M., Lasser, M., Schaer, S., Stebler, P., and Jäggi, A.: BDS and QZSS in CODE's final solution -- assessment of the impact , EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-14680, https://doi.org/10.5194/egusphere-egu25-14680, 2025.