An error occurred while starting the "Union. 1b "consisted in the fact that on the rocket and on the" Frigate "the azimuths were calculated in different ways. This was told by an anonymous source in the space industry. "The Azimuth was counted in different ways, clockwise and counter-clockwise," he explained to RIA Novosti.. According to him, the upper stage should have turned only two degrees, but instead it began to rotate around its axis in the opposite direction, which led to the loss of orientation.

Investigation of the reason for the unsuccessful launch of the rocket from the Vostochny space center will continue until December 15. The head of the commission of inquiry appointed director of the Central Research Institute of Mechanical Engineering Oleg Skorobogatov.