SL-4 R/B (05476)

COSPAR: 1971-077B | Alt Name: Voskhod (N163) Blok-I
DECAYED

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

Launch Date

September 14, 1971

Launch Site

PLMSC

Launch Pad

LC41/1

Launch Vehicle

Voskhod 11A57

Orbital Elements

NORAD ID

05476

International Designator

1971-077B

Decay Date

9/22/1971

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Voskhod (N163) 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 4 Nov 2025

X Report 4 Nov 2025

Tesla's Cybertruck fleet integrates with SpaceX operations at Starbase, showcasing synergy between Musk's companies.

Space Brief 19 Aug 2025

Space Brief 19 Aug 2025

Today's briefing covers Rocket Lab's strategic acquisition, Space Dynamics Lab's new collaboration with the Space Force, and shifts within the Pentagon's AI division.

Space Brief 18 Jun 2025

Space Brief 18 Jun 2025

Today's updates cover crucial developments in satellite licensing reforms, defense cybersecurity, and AI integration within government sectors.

X Report 30 Jun 2025

X Report 30 Jun 2025

SpaceX is exploring alternative options for static fire tests amid infrastructure setbacks, emphasizing their adaptability in operations.

Space Brief 20 Mar 2025

Space Brief 20 Mar 2025

Today's brief highlights critical discussions in military space readiness, potential satellite 'dogfighting' scenarios, international defense collaborations, and a notable communications satellite launch.

New Glenn Explodes at LC-36, Grounded Over 1 Year | KeepTrack Space Brief

New Glenn Explodes at LC-36, Grounded Over 1 Year | KeepTrack Space Brief

Blue Origin's New Glenn rocket exploded at Cape Canaveral's LC-36, causing visible pad damage and a year-plus grounding. NASA lunar plans affected.

Kratos Wins $446M Space Force Missile-Warning Contract | KeepTrack Space Brief

Kratos Wins $446M Space Force Missile-Warning Contract | KeepTrack Space Brief

Kratos Defense awarded $446M Space Force contract for RMWT missile-warning ground systems. Rocket Lab secures $190M Pentagon deal for 20 hypersonic test flights.

Space Brief 13 Feb 2025

Space Brief 13 Feb 2025

Today's brief covers significant advancements in space satellite launches, military spending impacts on space, and notable developments from the Space Force and SpaceX.