Kosmos (Unknown Payload)

Overview

Destination: Sun-Synchronous Orbit
Mission: Government/Top Secret

Sun-Synchronous Orbit 43/4 (43R) Plesetsk Cosmodrome, Russian Federation

Unknown satellite(s) for the Russian military.

Updates

Cosmic_Penguin • April 17, 2026, 3:41 p.m.

Launch success.


Cosmic_Penguin • April 17, 2026, 4:10 a.m.

Tweaked estimated launch time based on orbital tracking data.


Cosmic_Penguin • April 17, 2026, 12:47 a.m.

Liftoff.
Note: Launch time is approximated.
Payload identities and usage of upper stage is uncertain.


Cosmic_Penguin • April 11, 2026, 3:40 a.m.

Added launch per NOTAMs; Payload and launch vehicle variant identities uncertain.
Launch expected between April 13/14 - 29/30 between 21:00-16:00 UTC daily.


Soyuz 2.1b/Volga

Family:
Configuration: Volga

Specifications
  • Minimum Stage
    2
  • Max Stage
    3
  • Length
    46.3 m
  • Diameter
    2.95 m
  • Fairing Diameter
  • Launch Mass
  • Thrust
    4149.0 kN
Family
  • Name
    Soyuz 2.1b/Volga
  • Family
  • Variant
    Volga
  • Alias
  • Full Name
    Soyuz 2.1b Volga
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
  • Geostationary Transfer Orbit
  • Direct Geostationary
  • Sun-Synchronous Capacity

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

Plesetsk Cosmodrome, Russian Federation

43/4 (43R)


Falcon 9
Success
4 days, 7 hours ago
Starlink Group 17-29
Space Launch Complex 4E - Vandenberg SFB, CA, USA

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Falcon 9
Success
1 week ago
CAS500-2 & Others
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Ride-share of 45 satellites including: * CAS500-2 (KASA, South Korea) The South Korean CAS500-1 and -2 satellites will image the Earth in pan-chr…


Falcon 9
Success
1 week, 1 day ago
Starlink Group 10-38
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Soyuz-5
Success
1 week, 2 days ago
Demo Flight
45/1 - Baikonur Cosmodrome, Republic of Kazakhstan

Demonstration Flight for Russia's new Soyuz-5 launch vehicle, with a mass simulator on board. The launch was suborbital with the simulator splashing …


Ariane 64
Success
1 week, 3 days ago
Amazon Leo (LE-02)
Ariane Launch Area 4 - Guiana Space Centre, French Guiana

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Falcon 9
Success
1 week, 3 days ago
Starlink Group 17-36
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Falcon Heavy
Success
1 week, 3 days ago
ViaSat-3 F3 (ViaSat-3 Asia-Pacific)
Launch Complex 39A - Kennedy Space Center, FL, USA

The ViaSat-3 is a series of three Ka-band satellites is expected to provide vastly superior capabilities in terms of service speed and flexibility fo…


Atlas V 551
Success
1 week, 5 days ago
Amazon Leo (LA-06)
Space Launch Complex 41 - Cape Canaveral SFS, FL, USA

Amazon Leo, formerly known as Project Kuiper, is a mega constellation of satellites in Low Earth Orbit that will offer broadband internet access, thi…


Falcon 9
Success
1 week, 6 days ago
Starlink Group 17-16
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 25 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Soyuz 2.1a
Success
2 weeks ago
Progress MS-34 (95P)
31/6 - Baikonur Cosmodrome, Republic of Kazakhstan

Progress resupply mission to the International Space Station.