Launch Details

Space launch mission information

Soyuz 2.1b/Fregat | Glonass-K1 No. 18 (Kosmos 2595) & Kosmos 2596

Launch Successful
2 days ago9/13/2025, 2:10:00 AM
Soyuz 2.1b/Fregat | Glonass-K1 No. 18 (Kosmos 2595) & Kosmos 2596

Mission Description

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.

Launch Videos

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Mission Updates

Cosmic_Penguin

Cosmic_Penguin

12/14/2023, 3:21:40 AM

Added launch.

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Cosmic_Penguin

Cosmic_Penguin

9/5/2025, 12:01:00 PM

NET September 13.

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Cosmic_Penguin

Cosmic_Penguin

9/12/2025, 12:34:00 PM

Tweaked T-0.

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Cosmic_Penguin

Cosmic_Penguin

9/13/2025, 12:29:00 PM

Launch success.

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Launch Details

Launch Window

9/13/2025, 2:10:00 AM

to 9/13/2025, 3:30:00 AM

Rocket Details

Soyuz 2.1b Fregat

Family: Soyuz

Variant: Fregat

Launch Facility

43/3 (43L)

Plesetsk Cosmodrome, Russian Federation