Luch 5B is a Russian geostationary satellite built for the Russian Ministry of Defence and the Russian Federal Security Service.
| Name of Satellite | Luch 5B |
| Purpose | Communications |
| Contractor | OAO ISS |
| Country of Contractor | Russia |
| Launch Mass (kg.) | 1 282 |
| Class of Orbit | GEO |
| Perigee (km) | 35 772 |
| Date of Launch | 02.11.2012 |
| Launch Site | Baikonur Cosmodrome |
| Launch Vehicle | Proton M |
| COSPAR Number | 2012-061A |
| NORAD Number | 38977 |
Communications Satellite is based on the ‘Express-1000NTA’ ISS Reshetnev bus with a launch mass of about 3000 kg. It will probably receive the designation ‘Kosmos’ after launch. It is reported that it will be located at 167° East longitude. The buses were reportedly repurposed from cancelled communications satellite projects, probably following the Yamal 300K and Yamal-500 satellites.
