SL-11 R/B (08807)

COSPAR: 1976-034B | Alt Name: Tsiklon-2 19-154 Stage 2
DECAYED

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

Launch Date

April 13, 1976

Launch Pad

LC90

Launch Vehicle

Tsiklon-2

Orbital Elements

NORAD ID

08807

International Designator

1976-034B

Decay Date

4/16/1976

Basic Satellite Info

Name

SL-11 R/B

Alternative Name

Tsiklon-2 19-154 Stage 2

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

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.

The 300,000 Swerves Keeping Low Earth Orbit From Crashing

The 300,000 Swerves Keeping Low Earth Orbit From Crashing

Starlink satellites fired their thrusters to dodge a collision roughly 300,000 times in 2025, about 822 times a day. Behind that number is a fragile, half-automated system of warnings, probabilities, and judgment calls that decides which close approaches are worth a maneuver and which are just noise.

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 Force Awards $437M for Military Satcom; New Glenn Clears Return | KeepTrack Space Brief

Space Force Awards $437M for Military Satcom; New Glenn Clears Return | KeepTrack Space Brief

Space Force contracts Viasat and SES for $437M Protected Tactical Satcom-Global program. Blue Origin clears New Glenn for flights after Flight 3 investigation.

Space Brief 5 Dec 2025

Space Brief 5 Dec 2025

Focusing on military satellite initiatives, defense strategies, and advancements in air and cyber capabilities

X Report 2 Jun 2025

X Report 2 Jun 2025

SpaceX delays the launch of 23 Starlink satellites due to geomagnetic storm concerns, adjusting the schedule for an upcoming Falcon 9 mission.

China's Rocket Factory Finds a Second Gear

China's Rocket Factory Finds a Second Gear

In 2024, China launched 68 orbital missions. In 2025, the number jumped to 97. In 2026, state media and Western analysts agree the target is 140 or more. Most of that growth is being driven by two state-backed mega-constellations, a half-dozen private launch companies hitting stride, and a deliberate national pivot toward commercial space. Beijing is no longer trying to catch SpaceX. It is trying to build an industrial base that outlasts one.

X Report 6 Mar 2025

X Report 6 Mar 2025

Starship Flight 8 set for launch, new milestones in the defense sector, and launch updates dominate today's news.

Musk Addresses Orbital Data Center Crowding Fears | KeepTrack X Report

Musk Addresses Orbital Data Center Crowding Fears | KeepTrack X Report

Elon Musk pushed back on orbital crowding concerns as SpaceX eyes data centers in space, with 10,584 Starlink satellites currently operational.