1. Karlsruhe Institute of Technology, Institute for Technical Physics, Eggenstein-Leopoldshafen, Germany
2. ESTEC, European Space Agency (ESA), Noordwijk, The Netherlands
3. Neutron Star Systems, Cologne, Germany
4. CEA-Grenoble/UGA/IRIG/DSBT, Grenoble, France
5. Madrid Space, Leganés, Madrid, Spain