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Journal articles

The International DORIS Service (IDS): Toward maturity

Abstract : DORIS is one of the four space-geodetic techniques participating in the Global Geodetic Observing System (GGOS), particularly to maintain and disseminate the Terrestrial Reference Frame as determined by International Earth rotation and Reference frame Service (IERS). A few years ago, under the umbrella of the International Association of Geodesy, a DORIS International Service (IDS) was created in order to foster international cooperation and to provide new scientific products. This paper addresses the organizational aspects of the IDS and presents some recent DORIS scientific results. It is for the first time that, in preparation of the ITRF2008, seven Analysis Centers (AC’s) contributed to derive long-term time series of DORIS stations positions. These solutions were then combined into a homogeneous time series IDS-2 for which a precision of less than 10 mm was obtained. Orbit comparisons between the various AC’s showed an excellent agreement in the radial component, both for the SPOT satellites (e.g. 0.5-2.1 cm RMS for SPOT-2) and Envisat (0.9-2.1 cm RMS), using different software packages, models, corrections and analysis strategies. There is now a wide international participation within IDS that should lead to future improvements in DORIS analysis strategies and DORIS-derived geodetic products.
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Submitted on : Friday, March 11, 2022 - 7:28:39 AM
Last modification on : Thursday, March 17, 2022 - 2:00:09 PM

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Pascal Willis, Hervé Fagard, Pascale Ferrage, Frank G. Lemoine, Carey E. Noll, et al.. The International DORIS Service (IDS): Toward maturity. Advances in Space Research, 2010, 45, pp.1408-1420. ⟨10.1016/j.asr.2009.11.018⟩. ⟨insu-03605325⟩

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