EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

The IDS Contribution to the ITRF2020

Guilhem Moreaux1, Frank Lemoine2, Hugues Capdeville1, Petr Stepanek3, Michiel Otten4, Jérôme Saunier5, and Pascale Ferrage6
Guilhem Moreaux et al.
  • 1Collecte Localisation Satellites, Localisation & Orbitographie, Ramonville Saint-Agne, France (
  • 2NASA, Goddard Space Flight Center, Greenbelt, USA
  • 3Research Institute of Geodesy, Topography and Cartography, Zdiby, Czech Republic
  • 4ESA, European Space Operations Centre, Darmstadt, Germany
  • 5IGN, Saint-Mandé, France
  • 6CNES, Toulouse, France

In the context of the realization of the next International Terrestrial Reference Frame (ITRF2020), the International DORIS Service (IDS) is involved in the estimation of DORIS station positions/velocities as well as Earth orientation parameters from DORIS data. Thus, the 4 IDS Analysis Centers  have re-analyzed all the DORIS observations from the fifteen DORIS satellites from January 1993 to December 2020.0.

The primary objective of this study is to analyze the DORIS contribution to ITRF2020 in terms of (1) geocenter and scale solutions; (2) station positions and week-to-week repeatability; (3) Earth orientation parameters; (4) a cumulative position and velocity solution.

Comparisons with the IDS contribution to ITRF2014 will address the benefits of the new antenna models, new models, including improved methods to handle non-conservative force model error on the Jason satellites, as well as the addition of data (compared to ITRF2014) from the latest DORIS missions (e.g. Jason-3, Sentinel-3A/B) in the IDS combination.

How to cite: Moreaux, G., Lemoine, F., Capdeville, H., Stepanek, P., Otten, M., Saunier, J., and Ferrage, P.: The IDS Contribution to the ITRF2020, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-2315,, 2021.


Display file