SL-11 R/B (18188)

COSPAR: 1987-060B | Alt Name: Tsiklon-2 29-813 Stage 2
DECAYED

Image
SL-11 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

July 10, 1987

Launch Pad

LC90

Launch Vehicle

Tsiklon-2

Orbital Elements

NORAD ID

18188

International Designator

1987-060B

Decay Date

7/11/1987

Basic Satellite Info

Name

SL-11 R/B

Alternative Name

Tsiklon-2 29-813 Stage 2

Type

Rocket Body

Status

Space Junk

Owner

UNKS

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

10.9

Diameter

3

Span

10.9

Dry Mass

4000

Launch Mass

4000

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11S692

Purpose

Unknown

Mission

Unknown

Manufacturer

YUZH

Life Expectancy

Unknown

Bus

11S692

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 14 May 2025

Space Brief 14 May 2025

Today's edition covers China's latest launches in their classified satellite programs, ongoing discussions in the U.S. Senate on missile defense, and the ever-escalating space debris crisis threatening national security.

Space Brief 5 Apr 2025

Space Brief 5 Apr 2025

Today's brief covers the new Space Force operations doctrine, international defense collaborations by the UAE, and satellite tracking technology innovations.

X Report 28 May 2025

X Report 28 May 2025

Today marks significant milestones and setbacks for SpaceX as Starship Flight 9 completes a historic launch but ultimately suffers a loss of control. Additionally, a successful Starlink deployment continues to expand global internet coverage.

SpaceX Stock Jumps 19% on Nasdaq Debut, X Report 15 Jun 2026

SpaceX Stock Jumps 19% on Nasdaq Debut, X Report 15 Jun 2026

SpaceX stock surged 19% on its Nasdaq debut as Musk targets $1 trillion revenue by 2030. Starlink 17-54 marks the 1,500th satellite launched in 2026.

Space Brief 20 Feb 2025

Space Brief 20 Feb 2025

Expansion of national security capabilities with new services, shifts in Pentagon priorities, challenges in zero trust compliance, and more.

Starship Flight 13 to Debut First Starlink V3 Satellites | KeepTrack X Report

Starship Flight 13 to Debut First Starlink V3 Satellites | KeepTrack X Report

SpaceX readies Starship Flight 13 for July 16 launch to deploy first Starlink V3 satellites as Falcon 9 logs its 600th booster reuse.

Crew-12 Set for Launch, Starlink Wins New Airline Customer | KeepTrack X Report

Crew-12 Set for Launch, Starlink Wins New Airline Customer | KeepTrack X Report

SpaceX Crew-12 mission set to launch astronauts to ISS on Feb 13. Starlink gains another airline partner for in-flight internet. Musk tops Forbes' 250 Greatest Innovators list.

X Report 23 Apr 2025

X Report 23 Apr 2025

SpaceX marks a significant milestone with its Bandwagon-3 mission, while Ukraine explores Starlink alternatives.