Luca Massotti, Christian Siemes, Olivier Carraz, Roger Haagmans, Pierluigi Silvestrin, ^○Michael Kern (European Space Agency)

Ulrich Meyer, ^○Adrian Jaeggi, Yoomin Jean, Daniel Arnold (University of Bern, Bern, Switzerland)

Igor Koch, Akbar Shabanloui, Jakob Flury, ^○Juergen Mueller (Leibniz University of Hannover, Hannover, Germany)

Hojjat Kabirzadeh, Dimitrios Piretzidis, Jeong Woo Kim, ^○Michael G. Sideris (Department of Geomatics Engineering, University of Calgary, AB, Canada)

^○Joanna Kuczynska-Siehien¹, Zofia Rzepecka¹, Monika Birylo¹, Ewa Andrasik², Jolanta Nastula³ (1.University of Warmia and Mazury in Olsztyn, Olsztyn, Poland, 2.Warsaw University of Technology, Warsaw, Poland, 3.Space Research Centre Polish Academy of Sciences, Warsaw, Poland)

^○Mohammad Bagherbandi^{1, 2}, Hadi Amin¹, Nureldin Gido^{1, 2}, Lars E. Sjöberg² (1.Faculty of Engineering and Sustainable Development, University of Gävle, SE-801 76 Gävle, Sweden, 2.Division of Geodesy and Satellite Positioning, Royal Institute of Technology (KTH), SE-100 44 Stockholm, Sweden)