[4] It was the last US-KMO geostationary satellite, to be launched, prior to the system being replaced by EKS.

The last[4][6][7] Proton-K carrier rocket with a DM-2 upper stage was used to perform the launch, which took place at 05:49 UTC on 30 March 2012.

[4] The United States Space Command assigned it the Satellite Catalog Number 38101.

[2] It arrived at 80°E in mid-April 2012 and featured in the official opening of the Oko eastern control centre at Pivan-1 in May.

[8][9] It started to drift from 80°E in July 2012 and in October 2012 it was stabilised at 166°E, a location registered as Prognoz-6 but which had previously never been used.