SL-11 R/B (09645)

COSPAR: 1976-126D | Alt Name: Tsiklon-2 23-301T Stage 2

DECAYED

Image

Additional Sources

Launch Details

Launch Date

December 27, 1976

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC90

Launch Vehicle

Tsiklon-2

Orbital Elements

NORAD ID

09645

International Designator

1976-126D

Decay Date

1/14/1977

Basic Satellite Info

Name

SL-11 R/B

Alternative Name

Tsiklon-2 23-301T 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

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.

NASA Declares MAVEN Dead; Eastern Range Damage Assessment Underway | KeepTrack Space Brief

NASA officially ended the MAVEN Mars orbiter mission after months of radio silence following an anomaly. Space Force assessing Eastern Range damage from separate incident affecting launch cadence.

Space Brief 4 Apr 2025

Today's highlights include the release of a mystery object by Russian military satellites, SpaceX Fram2 mission insights, Amazon's upcoming satellite launch, and more.

X Report 5 Oct 2025

SpaceX secures major contracts for U.S. national security launches, including multiple Falcon Heavy missions. Significant updates on Starlink deployments and the ongoing evolution of the company highlight a productive day in the space sector.

X Report 18 Aug 2025

SpaceX's 100th Falcon 9 mission successfully launched 24 Starlink satellites, continuing to expand its broadband constellation.

Space Brief 4 Dec 2024

Today's brief covers significant advancements in materials technology for space applications, a U.S. Navy contract for rocket production facilities, and NATO's upcoming classified cloud system.

X Report 28 Aug 2025

SpaceX continues to break records with the Falcon 9's 30th flight while Starship's successful test flight propels the program forward after recent challenges.

Space Brief 17 Oct 2024

An exciting day in space with potential maneuver revelations from the X-37B, SpaceX's resumption of Falcon 9 launches, and significant advancements in lunar exploration tied to new U.S. spacesuits.

Space Brief 17 Nov 2025

Today's highlights include key advancements for the Dream Chaser, SpaceX's record launches, Moon mission crowding concerns, and updates in European space policy.