On October 23-24 the organizational workshop was held in Paris. The representatives of Kazan State University (Russia), TUBITAK National Observatory (Turkey), Institute of Celestial Mechanics and Ephemeris Calculations (IMCCE, France), Nikolaev Astronomical Observatory (Ukraine) were present. It was devotd to the international cooperation on the field of the study of Solar system bodies under the Gaia ground-based support which was prepared European Space Agency. Gennadiy Pinigin, A.V. Shulga and A.V. Ivantsov took part from Ukrainian side.