This was reported by RIA Novosti with reference to the project scientific supervisor, chief scientific associate of the Physical Institute of the Russian Academy of Sciences Arkady Halper.

“It used to be assumed that it would be a Ukrainian Zenit rocket. Then they began to discuss our Proton. Now a decision has been made that the Gamma-400 will fly on the Angara from Vostochny, Halper said.

He said that the observatory is planned to be put into a highly elliptical orbit in order to go beyond the radiation belt of the Earth.

“And then this orbit will turn into a circular orbit with an altitude of 200-300 thousand km due to the influence of the Earth and the Moon,” he said.

It is noted that the Gamma-400 observatory is intended to obtain information for determining the nature of “dark matter” in the Universe, developing the theory of the origin of high-energy cosmic rays and elementary particle physics, studying cosmic gamma radiation in the high-energy and X-ray range, and recording charged particles cosmic rays, search and research of gamma-ray bursts.

Earlier, the Space Research Institute of the Russian Academy of Sciences said that the Russian-German space observatory "Spectrum-RG" for the first time examined the entire sky in the x-ray range.