1. GATS Boulder CO USA
2. NASA Goddard Space Flight Center Greenbelt MD USA
3. Department of Electronic and Electrical Engineering University of Bath Bath UK
4. School of Physical Sciences University of Adelaide Adelaide South Australia Australia
5. Atrad Pty Ltd Thebarton South Australia Australia
6. Department of the Environment and Energy Kingston Tasmania Australia
7. National Institute of Polar Research and The Graduate University of Advanced Studies Tokyo Japan
8. British Antarctic Survey Cambridge UK
9. Instituto Nacional de Pesquisas Espaciais São Paulo Brazil
10. Department of Physics University of Western Ontario London Ontario Canada