Luch (satellite)

[3][4][5] The fifth satellite has been, due to lack of funds for the launcher, donated to the A.S. Popov Central Museum of Communications in Saint Petersburg, Russia.

[7][8] It enabled the rebuild of the Luch network and provided the ROS with 45 minutes of coverage per orbit via the Lira and Regul communications systems.

[11][18] During 2013 a military communication satellite was identified as both Luch and Olymp, and later named Olymp-K, was manifested to fly on the Proton-M.[19] It launched successfully on a Proton-M/Briz-M on September 28, 2014.

It is known to be based on the USP platform, to be designed for a 15-year life on GEO, to have a laser communications terminal, to use Hall thrusters and is considered to also have a SIGINT payload.

[21] It will be mostly a demonstration spacecraft for new technologies, particularly large diameter unfurlable antenna reflectors and use of electric propulsion for orbit raising maneuvers.

Conceptual drawing of a Luch geosynchronous satellite, referred to in the West as " Altair /SR relay satellite". It was designed for voice and data relay with the Mir space station, in what was called the Satellite Data Relay Network (SDRN). [ 2 ]