1. Space Data Science and Systems Group Los Alamos National Laboratory, MS D440 Los Alamos NM USA
2. Geophysics Group Los Alamos National Laboratory, MS D446 Los Alamos NM USA
3. Department of Engineering Science University of Oxford Oxford UK
4. Department of Mechanical and Process Engineering Swiss Federal Institute of Technology Zürich (ETH Zürich) Zürich Switzerland
5. Swiss Federal Laboratories for Materials Science and Technology (Empa) Dübendorf Switzerland