1. Institute of Ionosphere Kharkiv Ukraine
2. Department of Computer Science University of Alabama in Huntsville Hunstville Alabama USA
3. Institute of Atmospheric Physics of the Czech Academy of Sciences Prague Czech Republic
4. Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder Colorado USA
5. NOAA Space Weather Prediction Center Boulder Colorado USA
6. National Technical University "Kharkiv Polytechnic Institute" Department of Radio Electronics Kharkiv Ukraine
7. Department of Geophysics and Space Sciences Eötvös Loránd University Budapest Hungary
8. Geodetic and Geophysical Institute, RCAES Hungarian Academy of Sciences Budapest Hungary
9. UPC‐IonSAT, IEEC‐UPC Universitat Politècnica de Catalunya Barcelona Spain