Soyuz 2.1b Fregat — mission imagery
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Success

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

Soyuz 2.1b FregatRussian Space Forces43/3 (43L)
Saturday, September 13, 2025 · 02:10 AM UTCAdd to Calendar

This mission is complete.

Vehicle

Soyuz 2.1b Fregat

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Soyuz-2, GRAU index 14A14, is the collective designation for the 21st-century version of the Russian Soyuz rocket. In its basic form, it is a three-stage carrier rocket for placing payl...

Height46.3 m
LEO Payload8,200 kg
Launches157
Successes148

Provider

Russian Space Forces

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RUS • Founded 1992

The Russian Space Forces are a branch of the Russian Aerospace Forces, that provides aerospace warning, air sovereignty, and protection for Russia. Having been reestablished following August 1, 2015 merger betw...

Mission Brief

Glonass-K1 are the third generation of satellite design for GLONASS satellite navigation system. GLONASS is a Russian space-based navigation system comparable to the similar GPS and Galileo systems. This generation improves on accuracy, power consumption and design life. Each satellite is unpressurized and weighs 935 kg, and has an operational lifetime of 10 years. This launch also carries Mozhayets-6 (Kosmos 2596), a small experimental satellite built by the Mozhaiskiy Military Space Academy of St. Petersburg.

PayloadGlonass-K1 No. 18 (Kosmos 2595) & Kosmos 2596
OrbitMedium Earth Orbit
CustomerRussian Space Forces
Stages4
Pad43/3 (43L), Plesetsk Cosmodrome, Russian Federation

Mission Timeline

14 / 14100%
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Launch Site

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

LAUNCH SITE
62.927°N, 40.450°E

Schedule History

No delays or schedule changes recorded.