Glonass-K1 No. 18 (Kosmos 2595) & Kosmos 2596

Carried the Glonass-K1 No. 18 navigation satellite (Kosmos 2595) to medium Earth orbit from Plesetsk to reinforce Russia's GLONASS constellation, along with Mozhayets-6 (Kosmos 2596), a small experimental satellite built by the Mozhaisky Military Space Academy.

Outcome

Success

Orbit

MEO

Medium Earth orbit

Payload to orbit

1.1 T

Flight

25th

of 26 Soyuz 2.1b Fregat flights

Date and time

13 September 2025, 02:10 UTC

Rocket

Soyuz 2.1b Fregat

Builder

Progress RSC

Launch site

43/3 (43L), Plesetsk Cosmodrome, Russian Federation

Payload

Navigation

International designator

2025-206

Launches in 2025

215th of 329

See it in orbit

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

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