Recorded mission
Watch
Russian Space Forces
Soyuz 2.1b | Pion-NKS No. 1 (Kosmos 2550)
Recorded mission coverage
Playing a video connects to YouTube. Coverage may be scheduled, live or recorded. If a player is unavailable, use “Open source”.
Mission brief
The flight at a glance.
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.
Open the full mission →Published flight sequence
Know what comes next.
Planned timings relative to the target. These steps do not indicate live progress.
A flight sequence has not been published for this mission.