Russian Space Forces Soyuz 2.1b Pion-NKS No. 1 (Kosmos 2550)
Soyuz 2.1b
Status
Success
Date
25 JUN 2021
19:50
Mission Overview
The Russian Pion-NKS (14F139) satellites are the naval component of the next generation ELINT satellite system Liana. As a replacement for both the passive ELINT US-PM and the active radar US-A, they carry both ELINT sensors as well as an active radar.
Rocket
Soyuz 2.1b
Mission Type
Government/Top Secret
Orbit
Low Earth Orbit
Stages
3
Livestream
Rocket Details
Soyuz-2 is the 21st-century version of the Russian Soyuz rocket. In its basic form, it is a three-stage carrier rocket for placing payloads into low Earth orbit. The 2.1b version adds an upgraded engine (RD-0124) with improved performance to the second stage.
Height
46.3 m
Diameter
2.95 m
Launch Mass
312 T