Glonass-K1 No. 18 (Kosmos 2595) & Kosmos 2596
Soyuz 2.1b Fregat, Russian Space Forces
43/3 (43L), Plesetsk Cosmodrome, Russian Federation
Launch time
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Sat 13 Sept, 04:10 CEST
02:10 UTC
The rocket put its payload into the planned orbit.
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Launch record updated by LL2
Feed checkedMission
Glonass-K1 No. 18 (Kosmos 2595) & Kosmos 2596 on Soyuz 2.1b Fregat. Sat 13 Sept 2025, 02:10 UTC. Reported outcome: Success. Launch site: 43/3 (43L). Source: Launch Library 2.
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.
- Mission type
- Navigation
- Orbit
- Medium Earth Orbit
Launch timeline
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Slip history
Changes recorded by Space Right Now
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Source updates from Launch Library 2 (4)
Announcements supplied by LL2 may predate our tracking. They are separate from changes observed by Space Right Now.
- LL2 update
Launch success.
Read the source update - LL2 update
Tweaked T-0.
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NET September 13.
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Added launch.
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Launch pad
43/3 (43L)
Plesetsk Cosmodrome, Russian Federation (RU)
Coordinates: 62.9273, 40.45
View launch pad on a map