1. Physical Sciences Division; British Antarctic Survey; Cambridge UK
2. Department of Physics; University of Otago; Dunedin New Zealand
3. UltraMSK.com; Dunedin New Zealand
4. Sodankylä Geophysical Observatory; University of Oulu; Sodankylä Finland
5. Space Research Group; Eötvös University; Budapest Hungary
6. Hermanus Magnetic Obsevatory; Hermanus South Africa
7. School of Physics; University of KwaZulu Natal; Durban South Africa
8. School of Mathematical and Physical Sciences and Cooperative Research Centre for Satellite Systems; University of Newcastle; Callaghan, New South Wales Australia
9. Earth Observation; Finnish Meteorological Institute; Helsinki Finland