The Meridian-4 satellite is part of the Russian satellite communications system. It is used for military and civilian purposes.
| Name of Satellite | Meridian-4 |
| Purpose | Communications |
| Contractor | PO Polyot |
| Country of Contractor | Russia |
| Launch Mass (kg.) | 2 500 |
| Class of Orbit | Elliptical |
| Perigee (km) | 1 722 |
| Date of Launch | 04.05.2011 |
| Launch Site | Plesetsk Cosmodrome |
| Launch Vehicle | Soyuz-2.1a |
| COSPAR Number | 2011-018A |
| NORAD Number | 37398 |
Meridian-4 type satellites can replace all Molniya-1T, Molniya-3 and Molniya 3K series satellites, and probably the Parus navigation satellite as well.
