1. DTU Space, Technical University of Denmark , Elektrovej 327-328, DK-2800 Lyngby, Denmark
2. Université de Strasbourg, CNRS, Observatoire Astronomique de Strasbourg , UMR 7550, F-67000 Strasbourg, France
3. Department of Physics, National and Kapodistrian University of Athens, University Campus Zografos , GR-15783, Athens, Greece
4. Astronomy and Astrophysics Division, Physical Research Laboratory , Navrangpura, Ahmedabad, 380009, Gujarat, India
5. Max-Planck-Institut für Extraterrestrische Physik , Gießenbachstraße 1, D-85748 Garching, Germany
6. International Space Science Institute (ISSI) , Hallerstrasse 6, CH-3012 Bern, Switzerland
7. Indian Institute of Technology Gandhinagar , Palaj, Gandhinagar, 382055, Gujarat, India
8. Astrophysics Science Division, NASA’s Goddard Space Flight Center , Greenbelt, MD 20771, USA
9. Institut de Recherche en Astrophysique et Planétologie, UPS-OMP, CNRS, CNES, 9 Avenue du Colonel Roche , BP 44346, F-31028 Toulouse Cedex 4, France
10. MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
11. Dipartimento di Fisica, Università degli Studi di Cagliari , SP Monserrato-Sestu km 0.7, I-09042 Monserrato, Italy