SL-4 R/B (05341)

COSPAR: 1971-062B | Alt Name: Voskhod (N159) Blok-I
DECAYED

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

Launch Date

July 23, 1971

Launch Site

PLMSC

Launch Pad

LC43/3

Launch Vehicle

Voskhod 11A57

Orbital Elements

NORAD ID

05341

International Designator

1971-062B

Decay Date

7/29/1971

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Voskhod (N159) 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.

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.

X Report 24 Mar 2025

X Report 24 Mar 2025

SpaceX sets a rocket re-use record, Starlink satellites continue to proliferate, and Botswana launches its first national satellite.

Army Recruiting 1,000 Space Specialists Alongside Space Force | KeepTrack Space Brief

Army Recruiting 1,000 Space Specialists Alongside Space Force | KeepTrack Space Brief

Army launches space career field seeking 1,000 new specialists. HASC chair Rogers eyes $1.5T defense budget. Army and Marines share fire mission data via JADC2.

Starship Flight 12 Debuts Ship V3 as SDA Reorganizes York Space | KeepTrack Space Brief

Starship Flight 12 Debuts Ship V3 as SDA Reorganizes York Space | KeepTrack Space Brief

SpaceX's Starship Flight 12 debuts Ship 39 and Booster 19 on May 19, while York Space faces investor confusion as Space Force reorganizes the Space Development Agency.

X Report 15 Jan 2025

X Report 15 Jan 2025

SpaceX successfully launches two lunar landers and clears another milestone with Transporter-12 rideshare mission.

New Glenn Static Fire Anomaly Grounds Amazon Launch | KeepTrack Space Brief

New Glenn Static Fire Anomaly Grounds Amazon Launch | KeepTrack Space Brief

Blue Origin's New Glenn suffered catastrophic anomaly during static fire test at LC-36. Amazon LEO satellites pulled; NASA lunar missions now in question.

Santa Maria Spaceport (Azores)

Santa Maria Spaceport (Azores)

Europe's Atlantic outpost enters the launch business. How Portugal's first licensed spaceport in the Azores is preparing for suborbital flights in 2026 and positioning to receive ESA's Space Rider in 2028.

Space Brief 24 Oct 2024

Space Brief 24 Oct 2024

Today's Space Brief highlights SpaceX Crew-8's return, Intelsat-33e satellite breakup, SpaceX's upcoming Starship tests, and notable launches including China's new mega-constellation.