SL-4 R/B (05934)

COSPAR: 1972-026B | Alt Name: Voskhod (N181) Blok-I
DECAYED

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

Launch Date

April 6, 1972

Launch Site

PLMSC

Launch Pad

LC43/3

Launch Vehicle

Voskhod 11A57

Orbital Elements

NORAD ID

05934

International Designator

1972-026B

Decay Date

4/8/1972

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Voskhod (N181) 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.

X Report 24 Apr 2025

X Report 24 Apr 2025

SpaceX continues its historic launch cadence, includes Starlink expansion and business strategies in focus.

X Report 25 Feb 2025

X Report 25 Feb 2025

SpaceX has completed the investigation into Starship Flight 7, announcing causes ahead of the next planned launch, while numerous missions are lined up for launch this week.

FCC Approves 7,500 More Starlink Satellites, SpaceX Wins $739M Launch Contract | KeepTrack X Report

FCC Approves 7,500 More Starlink Satellites, SpaceX Wins $739M Launch Contract | KeepTrack X Report

FCC approves 7,500 additional Starlink Gen2 satellites. Space Force awards SpaceX $739M for nine national security launches. NASA plans Crew-11 medical evacuation from ISS on January 14.

X Report 3 Dec 2024

X Report 3 Dec 2024

Starship developments continue to capture attention alongside Starlink's latest deployment milestones.

Space Brief 14 Nov 2024

Space Brief 14 Nov 2024

Today's brief covers potential shifts in Space Force's strategy, new milestones in military satellite programs, and advancements in ground systems for missile defense. We'll also highlight Rocket Lab's latest contract win and critical design reviews in drone technology.

Space Force Gets $26B in Defense Bill, Golden Dome Initiative Funded | KeepTrack Space Brief

Space Force Gets $26B in Defense Bill, Golden Dome Initiative Funded | KeepTrack Space Brief

Space Force allocated $26B in 2026 defense appropriations backing Golden Dome initiative. FY26 defense bill adds $8B but sidelines $28B munitions request. First Qatari-Emirati joint defense venture formed.

Starlink Crosses 10,000 Active Satellites, X Report 18 Mar 2026

Starlink Crosses 10,000 Active Satellites, X Report 18 Mar 2026

Starlink satellite count 2026: SpaceX tops 10,000 active satellites, 10,037 working of 11,558 launched, under seven years after first launch.

Space Brief 15 Nov 2025

Space Brief 15 Nov 2025

Today's highlights include recent missile deals impacting military satellite launches, a Navy salvage operation in the South China Sea, and defense updates from the Manama Dialogue 2025.