SL-4 R/B (62906)

COSPAR: 2025-026E | Alt Name: Soyuz-2 Third Stage
DECAYED

Image
SL-4 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

February 5, 2025

Launch Site

Plesetsk Cosmodrome

Launch Pad

LC43/4

Launch Vehicle

Soyuz-2.1b

Orbital Elements

NORAD ID

62906

International Designator

2025-026E

Decay Date

3/24/2025

Explore in the Catalog
Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-2 Third Stage

Type

Rocket Body

Status

Space Junk

Owner

Russian Federal Space Agency (ROSCOSMOS)

Country

Russia

Constellation

N/A

Related Satellites

Major Events

N/A

Summary
A rocket body, also commonly referred to as an upper stage or spent rocket stage, is the structural shell left behind after a rocket has delivered its payload to orbit. These large and often heavy pieces of space hardware can remain in orbit for years, posing significant collision hazards as part of the growing space debris problem. If left uncontrolled, rocket bodies have the potential to reenter Earth's atmosphere unpredictably, which can lead to falling debris in populated areas. Additionally, they risk colliding with operational satellites or the International Space Station, creating more debris and putting human life at risk.
Physical Characteristics

Length

6.7

Diameter

2.7

Span

6.7

Dry Mass

2350

Launch Mass

2350

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Blok-I 14S54/RD-0110

Purpose

Unknown

Mission

Unknown

Manufacturer

PROGT

Life Expectancy

Unknown

Bus

Blok-I

Configuration

Unknown

Motor

Unknown

Equipment

Unknown

Power System

Unknown

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Australian Space Centre Cape York

Australian Space Centre Cape York

When your landlord won't sign the lease, you move. How Equatorial Launch Australia abandoned Arnhem Land and pivoted to Queensland - and what it means for Australia's equatorial launch ambitions.

X Report 28 Dec 2025

X Report 28 Dec 2025

SpaceX scrubs a launch due to ground system issues while continuing its ambitious deployment of Starlink satellites.

SpinLaunch's Kinetic Launch System

SpinLaunch's Kinetic Launch System

How a California startup's massive centrifuge could transform space access by eliminating rocket fuel, reducing costs by 70%, and enabling daily satellite launches - if it can overcome the physics of scaling from suborbital tests to orbital reality

NordSpace Atlantic Spaceport Complex

NordSpace Atlantic Spaceport Complex

Canada's sovereign space access finally has a construction site. How NordSpace is building the Atlantic Spaceport Complex in Newfoundland - and what the scrubbed Taiga launch reveals about the path to orbit.

Intel Partners on Musk's Terafab AI Chip Fab | KeepTrack X Report

Intel Partners on Musk's Terafab AI Chip Fab | KeepTrack X Report

Intel joins Terafab, Elon Musk's Austin AI chip complex, to supply SpaceX and Tesla as Falcon 9 prepares a Cygnus ISS run.

X Report 19 Mar 2025

X Report 19 Mar 2025

SpaceX safely returns Crew-9 from ISS, launches new Starlink satellites, and showcases its satellite kit production capabilities.

X Report 7 Feb 2025

X Report 7 Feb 2025

DIU explores SpaceX Starship's in-space refueling; Investors advise startups against competing or emulating SpaceX.

X Report 27 Oct 2025

X Report 27 Oct 2025

SpaceX achieves a significant milestone with over 10,000 satellites launched, the West Coast welcomes Falcon Heavy launches, and developments around Artemis 3 prompt competitive discourse.