1. School of Physics and Astronomy University of Leicester Leicester UK
2. School of Cosmic Physics, DIAS Dunsink Observatory Dublin Institute for Advanced Studies Dublin 15 Ireland
3. The Center for Space Plasma and Aeronomic Research (CSPAR) The University of Alabama in Huntsville Huntsville AL USA
4. School of Mathematics and Statistics University of St Andrews St Andrews UK
5. Trinity College Dublin Dublin Ireland
6. John Hopkins University Applied Physics Laboratory Laurel MD USA