LAUNCH CENTER
Meridian-M No.18
LAUNCH TIME
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RECOVERY OVERVIEW
Location
No Recovery Specified
Type
No Recovery Specified
Rocket Details
Name:
Soyuz 2.1a Fregat-MDescription:
The 2.1a version includes conversion from analog to digital flight control system and uprated engines on the booster and the first stage with improved injection systems. The new digital flight control and telemetry systems allow the rocket to launch from a fixed rather than angled launch platform and adjust its heading in flight. A digital control system also enables the launch of larger commercial satellites with wider and longer payload fairings such as the ST-type fairing. These fairings introduce too much aerodynamic instability for the old analog system to handle.
MISSION OVERVIEW
- Type: Communications
- The Meridian series of communications satellites is reported to be the replacement for all the Molniya-1T, the Molniya-3 and Molniya-3K satellite series and possibly also for the communication component of the Parus. They are launched into highly eccentric Molniya-orbits. Meridian is the highly eccentric orbit (HEO) component of the Integrated Satellite Communications System (ISSS), where they work in conjunction with the geostationary Raduga-1M (Globus-M) satellites. The bus structure is reportedly pressurized, possibly based on the Uragan-M bus. Meridian satellites carry three transponders operating in different frequency bands.
COMPLEX OVERVIEW
Location
Plesetsk Cosmodrome, Russian Federation
Pad
43/4 (43R)