Luch (satellite)
Luch 15 (Altair 15L) in the A.S. Popov Central Museum of Communications in Saint Petersburg, Russia | |
| Manufacturer | NPO-PM |
|---|---|
| Country of origin | Russia |
| Applications | To transmit live TV images, communications and other telemetry |
| Specifications | |
| Spacecraft type | Satellite |
| Dry mass | 2.4 metric tons |
| Power | 1.8 kW |
| Regime | Geosynchronous |
| Capacity | |
| Payload to {{{to}}} | |
The Luch (Russian: Луч; lit. Ray) Satellite Data Relay Network (SDRN), also referred to as Altair and Gelios, is a series of geosynchronous Russian relay satellites, used to transmit live TV images, communications and other telemetry from the Soviet/Russian space station Mir, the Russian Orbital Segment (ROS) of the International Space Station and other orbital spacecraft to the Earth, in a manner similar to that of the US Tracking and Data Relay Satellite System.