[1] CONICET UBA, Inst Astron & Fis Espacio, Buenos Aires, DF, Argentina
[2] Univ Ctr Svalbard, Birkeland Ctr Space Sci, Longyearbyen, Norway
[3] Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK USA
[4] Deutsch Zentrum Luft & Raumfahrt DLR, Oberpfaffenhofen, Germany
[5] Inst Cosmophys Res & Aeron SB RAS, Yakutsk, Russia
[6] Stockholm Univ, Meteorologiska Inst, Stockholm, Sweden
[7] Russian Acad Sci, Obukhov Inst Atmospher Phys, Moscow, Russia
[8] Univ Wuppertal, Dept Phys, Wuppertal, Germany
[9] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan
[10] Univ Western Ontario, London, ON, Canada
[11] CSIC, Inst Astrofis Andalucia, Granada, Spain
[12] Utah State Univ, Ctr Atmospher & Space Sci, Logan, UT 84322 USA
[13] Univ Fed Campina Grande, Unidade Acad Fis, Campina Grande, Paraiba, Brazil
[14] Norges Teknisk Nat Vitenskapelige Univ, Trondheim, Norway
[15] Birkeland Ctr Space Sci, Bergen, Norway
[16] Australian Antarctic Div, Kingston, Tas, Australia
[17] Univ Bremen, Inst Umweltphys, D-28359 Bremen, Germany
[18] Ernst Moritz Arndt Univ Greifswald, Inst Phys, Greifswald, Germany