SL-12 R/B(1) (20108)

COSPAR: 1989-052B | Alt Name: Proton-K 340-02 Stage 3
DECAYED

Image
SL-12 R/B(1) Satellite Image
Additional Sources
Launch Details

Launch Date

July 5, 1989

Launch Pad

LC200/40

Launch Vehicle

Proton-K/DM-2

Orbital Elements

NORAD ID

20108

International Designator

1989-052B

Decay Date

7/7/1989

Basic Satellite Info

Name

SL-12 R/B(1)

Alternative Name

Proton-K 340-02 Stage 3

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

6.5

Diameter

4.2

Span

6.5

Dry Mass

4185

Launch Mass

4185

Shape

Cyl

Radar Cross Section

0.01

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

8S812

Purpose

Unknown

Mission

Unknown

Manufacturer

ZIKH

Life Expectancy

Unknown

Bus

8S812

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 Brief 8 Mar 2025

Space Brief 8 Mar 2025

Today's Space Brief covers the landing of the X-37B spaceplane after a 434-day mission, the postponement of SDA's satellite launch, and the fiery debris from SpaceX's Starship over The Bahamas.

Space Brief 16 Aug 2025

Space Brief 16 Aug 2025

Today's brief covers ULA's new mission for the US Space Force, China's moon rocket test, delays in the DARC radar system, and SpaceX's Starlink launches.

MDA and Hanwha Partner on South Korea K-LEO Defense Network | KeepTrack Space Brief

MDA and Hanwha Partner on South Korea K-LEO Defense Network | KeepTrack Space Brief

MDA Space and Hanwha target South Korea's K-LEO defense satellite network. House passes $839B defense bill. Pentagon picks 25 vendors for $150M drone competition.

Space Brief 1 Nov 2024

Space Brief 1 Nov 2024

Today's update highlights Boeing's challenges with the Starliner, Europe's IRIS2 constellation advancement, China's CAS Space's global ambitions, and vivid new telescope images of cosmic events.

X Report 7 Aug 2025

X Report 7 Aug 2025

SpaceX's Crew-10 astronauts are set to return to Earth, while Impulse Space takes strides in spacecraft capabilities. Additionally, SpaceX prepares to launch 24 Amazon Project Kuiper satellites.

X Report 3 Sep 2025

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.

Suborbital Tourism Scorecard 2026, the Edge of Space Goes Quiet

Suborbital Tourism Scorecard 2026, the Edge of Space Goes Quiet

Twenty-two years after SpaceShipOne, the two companies that defined suborbital tourism are both sitting on the ground. Blue Origin parked New Shepard in January, Virgin Galactic has not flown a customer since 2024, and the math behind the whole business is finally getting an honest look.

Artemis 2 Delayed by Upper Stage Issue, Falcon 9 Hits 33rd Flight | KeepTrack Space Brief

Artemis 2 Delayed by Upper Stage Issue, Falcon 9 Hits 33rd Flight | KeepTrack Space Brief

NASA delays Artemis 2 for SLS upper stage fix and pad rollback. SpaceX Falcon 9 booster shatters reuse record with 33rd flight. Tory Bruno joins Blue Origin for defense work.