Die Duan^1,2, Trevor A Bowen³, Christopher H K Chen⁴, Jiansen He⁵, Alfred Mallet^6,7, Stuart D Bale⁸, Daniel Vech⁹, Marc Pulupa⁸, David Malaspina¹⁰, John W Bonnell⁸, Peter Harvey¹¹, Keith Goetz¹², Thierry Dudok de Wit¹³, Robert J MacDowall¹⁴, Justin Christophe Kasper¹⁵, Anthony W Case¹⁶, Kelly E Korreck¹⁷, Davin E Larson¹⁸, Roberto Livi³, Michael Louis Stevens¹⁹ and Phyllis L Whittlesey³, (1)Peking University, School of Earth and Space Sciences, Beijing, China, (2)Space Science Laboratory, UCB, Berkeley, United States, (3)University of California Berkeley, Berkeley, CA, United States, (4)Queen Mary University of London, School of Physics and Astronomy, London, United Kingdom, (5)Peking University, Beijing, China, (6)University of New Hampshire, Durham, NH, United States, (7)Space Science Laboratory, UCB, Berkeley, CA, United States, (8)University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (9)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (10)University of Colorado, Boulder, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (11)Space Sciences Laboratory, Berkeley, United States, (12)University of Minnesota, Minneapolis, MN, United States, (13)LPC2E, CNRS and University of Orléans, Orléans, France, (14)NASA/Goddard Space Flight Center, Greenbelt, United States, (15)University of Michigan, Ann Arbor, MI, United States, (16)Smithsonian Astrophysical Observatory, Cambridge, MA, United States, (17)Smithsonian Observatory, Cambridge, MA, United States, (18)Space Sciences Laboratory, Berkeley, CA, United States, (19)Smithsonian Astrophysics Observatory, Cambridge, MA, United States