SL-4 R/B (14758)

COSPAR: 1984-018B | Alt Name: Soyuz-U No. 367 Blok-I
DECAYED

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

Launch Date

February 21, 1984

Launch Pad

LC31

Launch Vehicle

Soyuz-U

Orbital Elements

NORAD ID

14758

International Designator

1984-018B

Decay Date

2/23/1984

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-U No. 367 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 Crosses 10,000 Active Satellites, X Report 18 Mar 2026

Starlink Crosses 10,000 Active Satellites, X Report 18 Mar 2026

Starlink satellite count 2026: SpaceX tops 10,000 active satellites, 10,037 working of 11,558 launched, under seven years after first launch.

Space Brief 9 Dec 2025

Space Brief 9 Dec 2025

Today's edition covers significant military space developments, including DIU tech consolidation discussions, NDAA budget expansions, and new military commands.

SpaceX Postpones Falcon Heavy Launch Carrying Secretive X-37B Spaceplane

SpaceX Postpones Falcon Heavy Launch Carrying Secretive X-37B Spaceplane

SpaceX delays the much-anticipated Falcon Heavy launch of the secretive X-37B military spaceplane, marking a significant moment in space exploration and military technology.

X Report 1 Jun 2025

X Report 1 Jun 2025

SpaceX successfully launched 27 Starlink satellites, marking another milestone for its broadband internet service. Meanwhile, the latest GPS III satellite was also launched for the U.S. military, showcasing SpaceX's multifaceted capabilities.

Space Brief 1 Jul 2025

Space Brief 1 Jul 2025

Key developments in the space sector include new partnerships for satellite surveillance, strategic shifts from the Defense Department impacting weather forecasting, and the Space Force's focus on agile satellite technologies.

Space Brief 12 Feb 2025

Space Brief 12 Feb 2025

Today's space brief covers SpaceX's latest Starlink missions, Satellogic's contract with Brazilian Air Force, OCX, and ATLAS project updates, and DARPA's insights on cybersecurity vulnerabilities.

Space Brief 26 Nov 2025

Space Brief 26 Nov 2025

Today's update covers new military space initiatives, impacts of drone threats in Europe, and advancements in secure cloud technology for NATO and Ukraine.

X Report 11 Mar 2025

X Report 11 Mar 2025

A week of highs and lows for SpaceX, including weather-related delays and a return to Falcon launches.