Affiliation: | 1.Institut für Erdmessung, Leibniz Universit?t Hannover, Schneiderberg 50, 30167, Hannover, Germany ;2.Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS, Delft, The Netherlands ;3.Joint Institude for VLBI ERIC, PO Box 2, 7990 AA, Dwingeloo, The Netherlands ;4.Department of Physics and Astronomy, University of Missouri, 223 Physics Bldg., Columbia, MO, 65211-7010, USA ;5.Siberian State University of Geosystems and Technologies, Plakhotny Street 10, Novosibirsk, 630108, Russia ;6.LNE-SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, LNE, 61 avenue de l’Observatoire, 75014, Paris, France ;7.LASTIG LAREG, IGN, ENSG, Univ. Paris Diderot, Sorbonne Paris Cité, 35 rue Hélène Brion, 75013, Paris, France ;8.Bureau International des Poids et Mesures, Pavillon de Breteuil, 92312, Sèvres Cedex, France ; |