SL-4 R/B (05822)

COSPAR: 1972-006B | Alt Name: Voskhod (N176) Blok-I
DECAYED

Image
SL-4 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

February 3, 1972

Launch Pad

LC31

Launch Vehicle

Voskhod 11A57

Orbital Elements

NORAD ID

05822

International Designator

1972-006B

Decay Date

2/11/1972

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Voskhod (N176) Blok-I

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

6.7

Diameter

2.7

Span

6.7

Dry Mass

2350

Launch Mass

2350

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11A57I

Purpose

Unknown

Mission

Unknown

Manufacturer

PROG

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.

Space Brief 12 Dec 2024

Space Brief 12 Dec 2024

U.S. Space Force's Europe operations amidst Ukraine conflict, Maxar's new partnership, integration of military and commercial tech, and the Pentagon's new AI initiatives shape today's space discourse.

X Report 9 Feb 2025

X Report 9 Feb 2025

SpaceX prepares for another Starlink launch while facing potential C-band spectrum challenges.

X Report 11 Sep 2025

X Report 11 Sep 2025

SpaceX successfully launched 21 military satellites, marking a key achievement in national security efforts, while preparations continue for the upcoming NASA mission and insights emerge from the Starship development process.

Space Brief 22 Nov 2024

Space Brief 22 Nov 2024

Today's key topics include delays in Vulcan's national security launches, a significant network upgrade contract for the Space Force, and military interest in SpaceX's Starship.

Vulcan Centaur Launches GSSAP Surveillance Satellites for Space Force | KeepTrack Space Brief

Vulcan Centaur Launches GSSAP Surveillance Satellites for Space Force | KeepTrack Space Brief

ULA Vulcan Centaur launches USSF-87 with two GSSAP surveillance satellites to near-GEO orbit. NRO expands commercial imaging. Integrate raises $17M for classified platform.

SpaceX Eyes Confidential IPO at $1.75T Valuation, Launches 54 Starlinks in One Day | KeepTrack X Report

SpaceX Eyes Confidential IPO at $1.75T Valuation, Launches 54 Starlinks in One Day | KeepTrack X Report

SpaceX reportedly eyes a confidential March IPO filing that could value the company at $1.75 trillion. Dual Falcon 9 launches deploy 54 Starlink satellites, pushing total on-orbit past 9,900.

Today in Space History 2025

Today in Space History 2025

From Apollo's darkest days to humanity's first transmission from Venus, we spent 2025 remembering the missions that made modern spaceflight possible. Here's what we covered - and why we're committed to keeping this series going.

Space Force Unveils New Alaska Radar, SDA Awards $3.5B for 72 Tracking Satellites | KeepTrack Space Brief

Space Force Unveils New Alaska Radar, SDA Awards $3.5B for 72 Tracking Satellites | KeepTrack Space Brief

Space Force deploys new radar in Alaska for orbital tracking. SDA awards $3.5B for 72 missile defense satellites. Anysignal raises $24M for autonomous RF sensing technology.