1. Instituto de Astrofísica de Andalucía (IAA) CSIC Granada Spain
2. Now at National Space Institute Technical University of Denmark (DTU Space) Kongens Lyngby Denmark
3. Birkeland Centre for Space Science, Department of Physics and Technology University of Bergen Bergen Norway
4. National Space Institute Technical University of Denmark (DTU Space) Kongens Lyngby Denmark
5. CAS Key Laboratory of Geospace Environment University of Science and Technology of China Hefei China
6. Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO) Institute of Atmospheric Science Chinese Academy of Sciences Beijing China
7. Image Processing Laboratory University of Valencia Valencia Spain