^○Axel Nothnagel¹, Dirk Behrend², Hayo Hase³, Arthur Niell⁴, Bill Petrachenko⁵, Gino Tuccari⁶ (1.University of Bonn, Bonn, Germany, 2.NVI Inc., Greenbelt MD, USA, 3.BKG/AGGO, Wettzell/La Plata, Germany/Argentina, 4.Haystack Observatory, Westford MA, USA, 5.Dominion Radio Observatory, Penticton, Canada, 6.IRA/INAF, Noto, Italy)

^○Takahiro Wakasugi, Michiko Umei, Tomoo Toyoda, Masayoshi Ishimoto, Ryoji Kawabata, Basara Miyahara (Geospatial Information Authority of Japan, Tsukuba, Japan)

^○Mamoru Sekido¹, Kazuhiro Takefuji¹, Hideki Ujihara¹, Tetsuro Kondo¹, Masanori Tsutsumi¹, Yuka Miyauchi¹, Eiji Kawai¹, Hiroshi Takiguchi², Ryuichi Ichikawa², Yasuhiro Koyama², Kennichi Watabe³, Tomonari Suzuyama³, Ryoji Kawabata⁴, Yoshihiro Fukuzaki⁴, Masayoshi Ishimoto⁴, Takahiro Wakasugi⁴, Jun'ichi Komuro², Kenjiro Terada², Kunitaka Namba², Rumi Takahashi², Tetsuro Aoki² (1.National Institute of Information and Communications Technology, Kashima Space Technology Center, Kashima, Japan, 2.National Institute of Information and Communications Technology, Headquarter, Koganei, Japan, 3.National Institute of Advanced Industrial Science and Technology, National Metrology Institute of Japan, Tsukuba, Japan, 4.The Geospatial Information Authority of Japan, Tsukuba, Japan)

^○Niko Kareinen, Thomas Hobiger, Ruediger Haas, Grzegorz Klopotek (Chalmers University of Technology, Gothenburg, Sweden)

^○Minghui Xu¹, James A. Anderson², Harald Schuh², Guangli Wang¹ (1.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 200030 Shanghai, China, 2.Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Telegrafenberg 14473 Potsdam, Germany)