Affiliation: | 1. Space Research Center, Polish Academy of Sciences, Warsaw, Poland 2. P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia 3. National Research Nuclear University “MEPhI”, Moscow, Russia 4. Astronomical Institute of Academy of Sciences of the Czech Republic, Prauge, Czech Republic 5. INAF—G.S. Vaiana Astronomical Observatory, Piazza, Italy 6. Mullard Space Science Laboratory, London, Great Britan
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