SL-6 R/B(1) (14588)

COSPAR: 1983-126B | Alt Name: Molniya-M 39-642 Blok-I

DECAYED

Image

Additional Sources

Launch Details

Launch Date

December 28, 1983

Launch Site

PLMSC

Launch Pad

LC16/2

Launch Vehicle

Molniya 8K78M

Orbital Elements

NORAD ID

14588

International Designator

1983-126B

Decay Date

2/8/1984

Basic Satellite Info

Name

SL-6 R/B(1)

Alternative Name

Molniya-M 39-642 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

Diameter

2.7

Span

Dry Mass

2700

Launch Mass

2700

Shape

Cyl

Radar Cross Section

35.09

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.

GPS III SV10 | The Last of Its Kind, and the First of What Comes Next

On April 21, 2026, the tenth and final GPS Block III satellite reached medium Earth orbit aboard a SpaceX Falcon 9. Named for Hedy Lamarr, the actress whose 1942 frequency-hopping patent underpins modern GPS, SV10 closes a procurement that took eight years to deliver hardware and opens the optical-crosslink era that will define the constellation's next decade.

Space Force Awards $54.5M to Starfish Space for GEO Servicing | KeepTrack Space Brief

Space Force awards $54.5M to Starfish Space for GEO satellite servicing vehicle. Artemis II heads to launch pad for first crewed Moon flyby in 54 years. Crew-12 confirmed.

The Kessler Syndrome

The Kessler Syndrome threatens humanity's future in space as cascading satellite collisions create exponential debris growth. With 36,000+ tracked objects and recent incidents accelerating risks, we face a critical juncture: implement solutions now or potentially lose access to low Earth orbit forever.

Starship V3 Debut Slips as Booster 19 Rolls to Pad 2 | KeepTrack X Report

Starship V3's maiden flight is delayed as SpaceX rolls Booster 19 to Pad 2 for Flight 9, while Falcon 9 completes its 30th mission of 2026.

X Report 21 Nov 2025

SpaceX celebrates significant milestones with its 100th launch of the year, enhancing Starlink's coverage while preparing for an escalating Starship production cadence.

Falling Space Debris Risk to Aircraft Grows, North Korea Tests Hypersonic Missiles | KeepTrack Space Brief

Experts warn falling space debris risk to aircraft is increasing. North Korea tests advanced hypersonic missiles. Space Force seeks launch providers for Cape Canaveral and Vandenberg pads.

The Day When Cassini Chose the Long Way Home

Cassini's Titan T-115 encounter marked the moment the spacecraft stopped looking down and started looking sideways, trading one type of science for another as it entered the final chapter of an iconic mission.

X Report 3 Sep 2025

SpaceX successfully launched 24 Starlink satellites aboard a brand-new Falcon 9 rocket. The company aims for five missions this week, bolstering its satellite internet constellation.