1468 20160705100435.0 SIDCimport-1757 Kruglanski, M. Services for GNSS users within the ESA Space Situational Awareness Space Weather Service Network 2015 2015-10-2x STCE De Donder, E. Glover, A. Borries, C. Janssens, J. IAIN World Congress 2015, Prague, Czech Republic, 20-23 October http://ieeexplore.ieee.org/xpl/login.jsp?tp==7352229=http%3A%2F%2Fieeexplore.ieee.org%2Fiel7%2F7337636%2F7352213%2F07352229.pdf%3Farnumber%3D7352229 Contributed CTALKCONT