1. Aalto University Metsähovi Radio Observatory Kylmälä Finland
2. Aalto University Department of Electronics and Nanoengineering Aalto Finland
3. Institute of Geodesy and Geoinformation Science, Technische Universität Berlin Berlin Germany
4. Shanghai Astronomical Observatory, Chinese Academy of Sciences Shanghai P.R. China
5. Max‐Planck‐Institut für Radioastronomie Bonn Germany
6. Finnish Geospatial Research Institute Masala Finland
7. Deutsches GeoForschungsZentrum (GFZ) Potsdam Germany