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The International DORIS Service after 20 years: Achievements and Look to the Future

Authors

Lemoine,  Frank
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Moreaux,  Guilhem
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Stepanek,  Petr
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Capdeville,  Hugues
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Otten,  Michiel
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Dettmering,  Denise
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Soudarin,  Laurent
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Saunier,  Jérôme
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Schrama,  Ernst
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Sellé,  Arnaud
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Ferrage,  Pascale
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Lemoine, F., Moreaux, G., Stepanek, P., Capdeville, H., Otten, M., Dettmering, D., Soudarin, L., Saunier, J., Schrama, E., Sellé, A., Ferrage, P. (2023): The International DORIS Service after 20 years: Achievements and Look to the Future, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4437


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021867
Abstract
Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) is one of the four techniques of Space Geodesy that contributes to the International Terrestrial Reference Frame (ITRF). DORIS as an operational geodetic method began with the SPOT-2 satellite in 1990. Following the lead of the other techniques of space geodesy, the International DORIS Service (IDS) was accepted as a service of the International Association of Geodesy (IAG) in 2003. As with the other techniques, the goal of the IDS is to coordinate the analyses of DORIS data in a systematic way, organize the contributions of the technique to the development of different realizations of the ITRF, and work to continue to improve the quality of the data and products that are available. In this paper we review the development of scientific products that are provided by the DORIS technique. We highlight the contributions to precise orbit determination (POD) for altimetric satellites, including its current performance with respect to the Sentinel-3A/B and Sentinel-6A satellites. We review the improvements in the quality of the geodetic parameters, both in positioning and in the Earth Orientation Parameters with the successive ITRF realizations, as different technical and modelling improvements were implemented. We also discuss the continued challenges with respect to DORIS including the sensitivity of the DORIS USO to the South Atlantic Anomaly (SAA), the modelling strategies that have been developed to deal with this effect. Finally we highlight also recent developments including a new focus on near-real-time products developed from DORIS data.