On September 22, 2017, the Air and Space Forces performed a successful launch of a Soyuz-2.1b rocket from the launch pad No. 4 of the launch complex No. 43 of the Plesetsk space launch site. The launch took place at 03:03 MSK (00:03 UTC). The satellite that the rocket and its Fregat boost stage delivered into orbit is a Glonass-M navigation satellite, designated Cosmos-2522. The satellite received international designation 2017-055A and was registered by NORAD as object 42939.

Previous Glonass launch took place in May 2016.

Given that the new satellite is designated Cosmos-2521, the satellite-inspector, released by Cosmos-2519 in August 2017, has not received a Cosmos designation.

UPDATE: Early reports indicated that the satellite was designated Cosmos-2521. This information has been updated. The Cosmos-2522 designation means that the satellite-inspector, released by Cosmos-2519 in August 2017, received the Cosmos-2521 designation.