SL-4 R/B (03512)

COSPAR: 1968-093B | Alt Name: Soyuz No. 08 Blok-I
DECAYED

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

Launch Date

October 25, 1968

Launch Pad

LC1

Launch Vehicle

Soyuz 11A511

Orbital Elements

NORAD ID

03512

International Designator

1968-093B

Decay Date

10/27/1968

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz No. 08 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.

Space Force Awards $3.2B for Orbital Missile Interceptors | KeepTrack Space Brief

Space Force Awards $3.2B for Orbital Missile Interceptors | KeepTrack Space Brief

Space Force awards $3.2 billion to 12 companies for Golden Dome boost-phase missile interceptor prototypes. Initial operational capability targeted for 2028.

SpaceX to Lower 4,400 Starlink Satellite Orbits for Space Safety | KeepTrack X Report

SpaceX to Lower 4,400 Starlink Satellite Orbits for Space Safety | KeepTrack X Report

SpaceX plans to lower orbits of 4,400 Starlink satellites after two collision-concern incidents. Cosmo-SkyMed Earth observation satellite launched for Italy from Vandenberg.

X Report 23 Dec 2024

X Report 23 Dec 2024

SpaceX successfully launches 21 Starlink satellites from Florida, marking another milestone in its satellite internet constellation. The Falcon 9 rocket was also successfully recovered at sea.

X Report 5 Dec 2024

X Report 5 Dec 2024

SpaceX achieves new milestones with Starlink launches, and Elon Musk's influence is a point of discussion. Telesat makes strides amid Starlink's growing dominance.

X Report 13 Dec 2025

X Report 13 Dec 2025

SpaceX continues making strides in satellite deployments and Starship preparations while managing challenges in space traffic.

Space Brief 22 Jun 2025

Space Brief 22 Jun 2025

Today's briefing covers a last-minute abort of a SpaceX Starlink launch, NASA's preparation for hypersonic tests, Airbus's progress in its space business, and more exciting developments in satellite tracking and reusable spaceflight.

Space Force Plans to Double Active-Duty Force by 2030 | KeepTrack Space Brief

Space Force Plans to Double Active-Duty Force by 2030 | KeepTrack Space Brief

Space Force confirms plan to double active-duty Guardians by 2030, targeting faster response to satellite anomalies and adversary maneuvers in space domain awareness operations.

X Report 20 Nov 2025

X Report 20 Nov 2025

SpaceX continues to make strides with its Starship program while successfully launching another batch of Starlink satellites into orbit, enhancing global internet coverage.