^○Jens Wickert^{1, 2}, Fadwa AlShawaf¹, Christina Arras¹, Milad Asgarimehr¹, Galina Dick¹, Stefan Heise¹, Kristine Larson³, XingXing Li¹, Cuixian Lu¹, Markus Ramatschi¹, Maximilian Semmling¹, Torsten Schmidt¹, Tzvetan Simeonov^1,2, Sibylle Vey¹, Florian Zus¹, Harald Schuh^1,2 (1.German Research Centre for Geosciences GFZ, Germany, 2.Technische Universitaet Berlin, Germany, 3.University of Colorada, Boulder, U.S.)

^○Katarzyna Stepniak¹, Olivier Bock², Pawel Wielgosz¹ (1.University of Warmia and Mazury in Olsztyn, Poland, 2.IGN LAREG, University Paris Diderot, France)

^○Seiichi Shimada^{1, 2}, Shingo Shimizu³, Kazuhisa Tsuboki⁴, Yusuke Morimoto⁴ (1.The University of Tokyo, Tokyo, Japan, 2.Nippo Co. Ltd., Kawasaki, Japan, 3.The National Research Institute for Earth Science and Disaster Prevention (NIED), Tsukuba, Japan, 4.Nagoya University)

^○Galina Dick¹, Jan Dousa², Michal Kacmarik³, Pavel Vaclavovic², Eric Pottiaux⁴, Florian Zus¹, Hugues Brenot⁵, Jan Kaplon⁶, Gregor Moeller⁷, Rosa Pacione⁸, Andrea Stuerze⁹, Norman Teferle¹⁰, Laurent Morel¹¹, Pawel Hordyniec⁶ (1.GFZ German Research Centre for Geosciences, Potsdam, Germany, 2.Geodetic Observatory Pecny, RIGTC, Ondrejov, The Czech Republic, 3.Technical University of Ostrava, Ostrava, The Czech Republic, 4.Royal Observatory of Belgium, Brussels, Belgium, 5.Belgian Institute for Space Aeronomy, Brussels, Belgium, 6.Institute of Geodesy and Geoinformatics, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland, 7.Vienna University of Technology, Vienna, Austria, 8.E-GEOS, s.p.a. & ASI, Matera, Italy, 9.Federal Agency for Cartography and Geodesy,, Frankfurt am Main, Germany, 10.University of Luxembourg, Luxembourg, 11. GeF Laboratory, ESGT – CNAM, Le Mans, France, 12. )

^○Pawel Hordyniec, Witold Rohm, Jan Kaplon (Wroclaw University of Environmental and Life Sciences, Institute of Geodesy and Geoinformatics, Wroclaw, Poland)

^○Jan Kaplon, Pawel Hordyniec, Witold Rohm (Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland)