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

Overview

Destination: Medium Earth Orbit
Mission: Navigation

Medium Earth Orbit 43/3 (43L) Plesetsk Cosmodrome, Russian Federation

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.

Updates

Cosmic_Penguin • Sept. 12, 2025, 12:34 p.m.

Tweaked T-0.


Cosmic_Penguin • Sept. 13, 2025, 12:29 p.m.

Launch success.


Cosmic_Penguin • Sept. 5, 2025, 12:01 p.m.

NET September 13.


Cosmic_Penguin • Dec. 14, 2023, 3:21 a.m.

Added launch.


Soyuz 2.1b/Fregat

Family:
Configuration: Fregat

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 payloads into low Earth orbit. The first-stage boosters and two core stages feature uprated engines with improved injection systems, compared to the previous versions of the Soyuz. Digital flight control and telemetry systems allow the rocket to be launched from a fixed launch platform, whereas the launch platforms for earlier Soyuz rockets had to be rotated as the rocket could not perform a roll to change its heading in flight. The Soyuz 2.1b represents the latest development stage of the proven rocket. It uses the new RD-0124 engines in the first three stages, coupled with an improved injection system that significantly boosts the performance of the Soyuz. Furthermore, she wears a new, digital startup control system. This will allow the Soyuz 2.1b to carry around 1.2 tonnes more payload into low earth orbit compared to its predecessor.

Specifications
  • Minimum Stage
    3
  • Max Stage
    4
  • Length
    46.3 m
  • Diameter
    2.95 m
  • Fairing Diameter
    4.11 m
  • Launch Mass
    312.0 T
  • Thrust
    4150.0 kN
Family
  • Name
    Soyuz 2.1b/Fregat
  • Family
  • Variant
    Fregat
  • Alias
  • Full Name
    Soyuz 2.1b Fregat
Payload Capacity
  • Launch Cost
    $80000000
  • Low Earth Orbit
    8200.0 kg
  • Geostationary Transfer Orbit
    3250.0 kg
  • Direct Geostationary
  • Sun-Synchronous Capacity
    4900.0 kg

Progress Rocket Space Center

Progress Rocket Space Center

(PRSC)

CEO: Dmitry Baranov Founded: 1996 Successes: 44 Failures: 1 Pending: 0

Agency Type:

Progress Rocket Space Centre, formerly known as TsSKB-Progress, is a space science and aerospace research company which is known for manufacturing launch vehicles and satellites. Most notably, Progress Rocket Space Centre is the manufacturer of Soyuz launch vehicles.

INFO WIKI

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Plesetsk Cosmodrome, Russian Federation

43/3 (43L)


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