All Launches
Russian Space Forces · Soyuz 2.1b/Fregat

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

SUCCESSNavigationMEO
Saturday, September 13, 2025 at 02:10 AM UTC
Plesetsk Cosmodrome, Russian Federation
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Mission Overview

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.

Payloads
1
Type
Navigation
Vehicle
Soyuz 2.1b/Fregat
Window
02:10 AM UTC – 03:30 AM UTC

Rocket

RU
Soyuz 2.1b/Fregat
Russian Space Forces

Launch Site

Plesetsk Cosmodrome, Russian Federation

Orbit

MEO·Medium Earth Orbit

Launch Window

Opens02:10 AM UTC
Closes03:30 AM UTC

Launch Site Weather

-9°CLight snow
Wind7 km/h SSW
Humidity97%
Visibility10 km

Track

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