NASA Goddard Space Flight Center Greenbelt, MD
UCL London
Aryabhatta Research Institute of Observational Sciences Nainital
Laboratory for Atmospheric and Space Physics. Boulder, CO
Edinburgh, Scotland
Dublin Institute for Advanced Studies (DIAS) Dublin, Ireland
American University Washington, D.C.
Montana State University Bozeman, Montana, USA
Imperial College London London, UK
Southwest Research Institute Boulder, CO
South Korea
Göttingen, Germany
Applied Physics Laboratory, JHU Maryland, USA