SL-4 R/B (08935)

COSPAR: 1976-064B | Alt Name: Soyuz No. 34 Blok-I
DECAYED

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

Launch Date

July 6, 1976

Launch Pad

LC1

Launch Vehicle

Soyuz 11A511

Orbital Elements

NORAD ID

08935

International Designator

1976-064B

Decay Date

7/9/1976

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz No. 34 Blok-I

Type

Rocket Body

Status

Space Junk

Owner

RVSN

Country

USSR

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

11S510

Purpose

Unknown

Mission

Unknown

Manufacturer

PROG

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.

Starlink 17-40 Adds 24 Sats from Vandenberg | KeepTrack X Report

Starlink 17-40 Adds 24 Sats from Vandenberg | KeepTrack X Report

SpaceX's Starlink 17-40 mission launches 24 satellites from Vandenberg SFB at 7:36 a.m. PDT, expanding the 10,705-satellite constellation.

China Launches VLEO Alliance With Sats Below 300km | KeepTrack Space Brief

China Launches VLEO Alliance With Sats Below 300km | KeepTrack Space Brief

China formalized a national VLEO industry alliance with multiple satellites sustaining operations below 300 kilometers altitude. Propulsion startups attracting investment.

The Day a Rocket Changed Space Policy Forever

The Day a Rocket Changed Space Policy Forever

Thirty years ago, a Chinese rocket veered off course two seconds after liftoff, destroyed a village, and triggered a political scandal that reshaped how the United States controls space technology to this day

Space Brief 29 Jul 2025

Space Brief 29 Jul 2025

Today's brief covers developments in space traffic management, the X-37B spaceplane's upcoming mission, and satellite interference with radio telescopes.

SpaceX Hits 600th Falcon 9 Launch, ISS Crew Restored to Seven | KeepTrack X Report

SpaceX Hits 600th Falcon 9 Launch, ISS Crew Restored to Seven | KeepTrack X Report

SpaceX launches 600th Falcon 9 rocket with Starlink 17-13 mission. Crew Dragon docks at ISS restoring crew to seven. Crew-12 launched on Friday the 13th in a first for NASA.

X Report 12 Dec 2024

X Report 12 Dec 2024

SpaceX progresses with Starship developments and sets sights on NASA's upcoming 3D sky-mapping satellite launch.

Space Brief 13 Aug 2025

Space Brief 13 Aug 2025

Today's Space Brief covers the inaugural national security mission of ULA's Vulcan Centaur, the Space Force's 2026 budget insights, and shifts in military drone technology.

Space Brief 23 Dec 2025

Space Brief 23 Dec 2025

Today's briefing covers the Long March 12A's first launch, a major advance in space radio communication, and highlights from key military developments impacting space operations.