Jonathan Rae, University College London, Mullard Space Science Laboratory, London, United Kingdom, Kyle R Murphy, University of Maryland College Park, College Park, MD, United States, Clare Watt, University of Reading, Reading, RG6, United Kingdom, Jasmine Kaur Sandhu, University of Leicester, Leicester, United Kingdom, Alexander W Degeling, Shandong University at Weihai, Weihai, China, Colin Forsyth, Mullard Space Science Lab., Dorking, United Kingdom, Sarah Bentley, University of Reading, Reading, United Kingdom, Frances A Staples, University College London, London, United Kingdom, Samuel Wharton, University of Leicester, Leicester, LE1, United Kingdom and Charlotte Willis, Mullard Space Science Laboratory, Dorking, United Kingdom