International audience
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December 14, 2009 (v1)Conference paperUploaded on: October 11, 2023
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December 14, 2009 (v1)Conference paper
International audience
Uploaded on: December 1, 2022 -
August 31, 2009 (v1)Conference paper
International audience
Uploaded on: December 4, 2022 -
April 19, 2009 (v1)Conference paper
International audience
Uploaded on: October 11, 2023 -
April 19, 2009 (v1)Conference paper
International audience
Uploaded on: December 1, 2022 -
June 29, 2009 (v1)Conference paper
A new version of ITRF (ITRF2008) is planned and requests combination of the various astro-geodetic techniques over a period of several years. In the framework of the « Groupe de Recherches de Géodésie Spatiale » GRGS, we are combining normal equations derived from the processing of 4 techniques on a regular basis (GPS, VLBI, SLR and DORIS)....
Uploaded on: December 4, 2022 -
October 9, 2006 (v1)Conference paper
A rigorous approach to simultaneously determine both a terrestrial reference frame (TRF) materialized by station coordinates and Earth Orientation Parameters (EOP) is now currently applied on a routine basis in a coordinated project of the Groupe de Recherches de Géodésie Spatiale (GRGS). To date, various techniques allow the determination of...
Uploaded on: December 3, 2022 -
September 2016 (v1)Journal article
As part of the data processing for Gaia Data Release~1 (Gaia DR1) a special astrometric solution was computed, the so-called auxiliary quasar solution. This gives positions for selected extragalactic objects, including radio sources in the second realisation of the International Celestial Reference Frame (ICRF2) that have optical counterparts...
Uploaded on: February 28, 2023