SL-4 R/B (29112)

COSPAR: 2006-017B | Alt Name: Soyuz-U-PVB 31-800 Blok-I

DECAYED

Image

Additional Sources

Launch Details

Launch Date

May 3, 2006

Launch Site

PLMSC

Launch Pad

LC16/2

Launch Vehicle

Soyuz-U-PVB

Orbital Elements

NORAD ID

29112

International Designator

2006-017B

Decay Date

5/8/2006

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-U-PVB 31-800 Blok-I

Type

Rocket Body

Status

Space Junk

Owner

KVR

Country

Russia

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

6.7

Diameter

2.7

Span

6.7

Dry Mass

2350

Launch Mass

2350

Shape

Cyl

Radar Cross Section

30.733

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11S510

Purpose

Unknown

Mission

Unknown

Manufacturer

PROGT

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.

SpaceX Wins $178.5M Space Force Missile Tracking Contract | KeepTrack Space Brief

SpaceX awarded $178.5M Space Force contract for missile tracking satellite launches beginning 2027. Pentagon also extends GPS modernization support with $45M Raytheon order.

X Report 6 Aug 2025

SpaceX has adapted Pad 1 for Ship Static Fire tests while addressing the recent downtime at Massey’s, showcasing its commitment to maintaining launch schedules despite setbacks.

Space Brief 6 Oct 2025

Today's highlights include Firefly's acquisition of SciTec, DARPA's vision for a moon economy, and ESA's new deep space antenna in Australia. Stay updated on the latest in space intelligence and defense technology transformations, plus noteworthy rogue planet phenomena.

NASA Postpones Spacewalk Over Medical Concern, Sierra Space Delivers SDA Satellites Early | KeepTrack Space Brief

NASA delays first 2026 spacewalk due to ISS crew medical issue. Sierra Space completes SDA Tranche 2 satellite structures ahead of schedule. Space Force advances Handle 2.0 standardization.

Crew-11 Preps for First-Ever ISS Medical Evacuation, Lufthansa Orders Starlink for 850 Jets | KeepTrack X Report

Crew-11 prepares for historic first ISS medical evacuation via Crew Dragon. Lufthansa Group to equip all 850 aircraft with Starlink. Starship infrastructure advances at Starbase and Cape Canaveral.

SpaceX Launches NROL-105 Spy Satellite, GE Validates Hypersonic Ramjet Engine | KeepTrack Space Brief

SpaceX launches NROL-105 spy satellite from Vandenberg in first national security mission of 2026. GE and Lockheed validate compact rotating detonation ramjet for hypersonic missiles.

Space Brief 13 Nov 2024

Today's focus spans critical developments in military space initiatives, strategic policy shifts, and modest steps in semiconductor advancements. Key developments include Rocket Lab's new U.S. Air Force contract, Sierra Space's progress in satellite programs, and potential policy changes under Trump's leadership.

X Report 15 Nov 2024

SpaceX preps for its sixth Starship test flight, moving the Super Heavy rocket to the pad. China's unveils a Starship-like reusable rocket concept, while Starlink expands with 24 new satellites launched.