Pion-NKS No. 1 (Kosmos 2550)

Soyuz 2.1b launched from Plesetsk carrying a classified Russian military satellite, designated Kosmos 2550 (Pion-NKS No. 1) once in orbit, for the Russian Defense Ministry.

Outcome

Success

Orbit

LEO

Low Earth orbit

Payload to orbit

7.2 T (est.)

Flight

11th

of 25 Soyuz 2.1b flights

Date and time

25 June 2021, 19:50 UTC

Rocket

Soyuz 2.1b

Builder

Progress RSC

Launch site

43/4 (43R), Plesetsk Cosmodrome, Russian Federation

Payload

Government/Top Secret

International designator

2021-056

Launches in 2021

59th of 146

See it in orbit

Space Atlas shows the satellites and rocket stages from this launch in 3D.

View satellites in Space Atlas↗