Visn. Nac. Akad. Nauk Ukr. 2017. (11): 53-65

O.V. Dudnik
Institute of Radio Astronomy of the National Academy of Sciences of Ukraine, Kharkiv


The Ukrainian satellite telescope of electrons and protons STEP-F performed a scientific experiment in space on board of low Earth orbit spacecraft CORONAS-Photon in 2009. The article describes the background, stages of development, manufacturing and tests of weight-dimensional, breadboard, technological, flight and auxiliary models of the instrument, and of the control and test suites for the STEP-F. Principles of operation, design, technical and scientific characteristics of the instrument are described. Stages of adjustment, graduating and autonomous, docking, complex, ground pre-flight and flight tests are given. Scientific results obtained by the STEP-F instrument during deep minimum solar activity detected new features in high energy charge particle distributions inside radiation belts of the Earth, in the region of Brazil magnetic anomaly, and outside of referred volumes.
Keywords: Earth’s magnetosphere, satellite instrument, scintillation detector, silicon matrix, charge particles, radiation belt, solar activity, Brazil magnetic anomaly

 Language of article: ukrainian



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16. Dudnik O.V., Podgorski P., Sylwester J. New perspectives to study the splitting of drift shells at the outer magnetosphere by using STEP-F and SphinX instruments on board the CORONAS-Photon satellite. In: Progress on EUV&X-ray spectroscopy and imaging II: Proc. Int. Conf. (November 17–19, 2015, Wroclaw, Poland). P. 8.

17. Dudnik O.V., Podgorski P., Sylwester J.Combined study of radiation belts by the satellite particle telescope STEP-F and solar soft X-ray photometer SphinX during recent deep minimum of solar activity. In: Proc. 23 National Solar Physics Meeting (May 30 — June 3, 2016, Liptovský Mikuláš, Slovakia). P. 1–6.