Institution: | a Space Science and Technology Department, Rutherford Appleton Laboratory, Didcot, Oxon OX11 0QX, UK b Indian Space Research Organisation, Bangalore, India c Centre d’Etude Spatiale des Rayonnements, CNRS/UPS, Toulouse, France d Institute of Mathematical and Physical Sciences, University of Wales, Aberystwyth, Ceredigion SY23 3BZ, UK e Imaging for Space and Terrestrial Applications Group, School of Engineering and Design, Brunel University, Uxbridge, Middlesex UB8 3PH, UK f Observatory, P.O. Box 14, FI-00014, University of Helsinki, Finland |