SL-4 R/B (14321)

COSPAR: 1983-092B | Alt Name: Soyuz-U 12-084 Blok-I
DECAYED

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

Launch Date

September 3, 1983

Launch Site

PLMSC

Launch Pad

LC43/4

Launch Vehicle

Soyuz-U

Orbital Elements

NORAD ID

14321

International Designator

1983-092B

Decay Date

9/6/1983

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-U 12-084 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.

X Report 7 Dec 2025

X Report 7 Dec 2025

SpaceX receives approval for a new Starship launch complex, while Blue Origin capitalizes on potential challenges faced by SpaceX in lunar missions.

Space Force Completes First Tactical Orbital Intercept | KeepTrack Space Brief

Space Force Completes First Tactical Orbital Intercept | KeepTrack Space Brief

U.S. Space Force executes first tactical orbital intercept under Victus Haze mission using commercial spacecraft. Rendezvous and proximity operations now operationally demonstrated.

Space Brief 27 Oct 2024

Space Brief 27 Oct 2024

Today's brief covers SpaceX's latest Starlink launch, updates on Crew-8's return, and preparations for the SLS Artemis II mission.

X Report 11 Dec 2024

X Report 11 Dec 2024

SpaceX advances with new Starship engine tests and celebrates a festive launch at Vandenberg. Jared Isaacman's NASA nomination brings excitement and scrutiny.

The Day America's Revolutionary Rocket Design Made Its Final Flight

The Day America's Revolutionary Rocket Design Made Its Final Flight

Twenty years ago, an Atlas rocket carrying a classified payload lifted off from Cape Canaveral, marking the end of a revolutionary spacecraft design that helped launch America into the Space Age

X Report 11 Dec 2025

X Report 11 Dec 2025

SpaceX has confirmed plans for an IPO and successfully launched multiple batches of Starlink satellites, advancing its mission for global internet coverage.

X Report 5 Jan 2025

X Report 5 Jan 2025

SpaceX prepares for the next Starship test flight with significant vehicle upgrades, launches UAE's Thuraya-4 satellite, and reflects on a record-breaking 2024 while planning for a promising 2025.

STS-30 | When Atlantis Sent a Radar to Venus

STS-30 | When Atlantis Sent a Radar to Venus

On May 4, 1989, Space Shuttle Atlantis lifted off from LC-39B carrying Magellan, NASA's first interplanetary mission since 1978. The eleven-year drought ended in a payload bay, and the radar that emerged would map ninety-eight percent of Venus through clouds that no camera could ever see through.