Affiliation: | School of Physics and Astronomy, Southampton University, Southampton SO17 1BJ;NASA Goddard Space Flight Center, Greenbelt, MD 20771 USA;Universities Space Research Association;Faculty of Engineering, Hokkai-Gakuen University, Sapporo, Japan;Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA;Department of Astronomy, University of Maryland, College Park, MD 20742, USA;Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland |