Soyuz 2.1a/Fregat-M | Meridian-M No.21L
Note: Payload identity uncertain.
Meridian is a series of communications satellite for military and civilian use.
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.
When is the Soyuz 2.1a/Fregat-M | Meridian-M No.21L launch?
What rocket is being used for Meridian-M No.21L?
Where is the Soyuz 2.1a/Fregat-M | Meridian-M No.21L launching from?
What orbit is Meridian-M No.21L going to?
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Mission Profile
Meridian-M No.21L was a Soyuz 2.1a/Fregat-M mission operated by Russian Space Forces that lifted off from 43/3 (43L), Plesetsk Cosmodrome, Russian Federation on April 3, 2026. The flight carried its payload on a communications mission to Elliptical Orbit. The launch was a success.


