It is noted that this was done "due to the need to obtain experimental confirmation from the specialists of the Moscow plant - manufacturer of the Proton-M launch vehicle of a technical solution for eliminating the comments made on one of the launch vehicle systems".
On June 21, it was reported that the launch of the Proton-M launch vehicle with the new Russian space telescope “Spectr-RG” from Baikonur was postponed due to identified observations.
In late May, the Proton-M rocket with the Yamal-601 communications satellite launched from the Baikonur cosmodrome.