... Fialka-MV-Kosmos multispectral UV system which includes: . ... Investigation of chemiluminescent chemical reactions and atmospheric optical phenomena occurring during high-speed interaction between jet engine exhausts and the Earth's upper atmosphere, atmospheric optical phenomena during re-entry of bodies into rarified upper atmosphere and its optical properties in the UV range. ... Radiation emitted in reactions of interaction between ISS RS propulsion system exhaust products and atomic oxygen; . ...