SL-4 R/B (06395)

COSPAR: 1973-016B | Alt Name: Voskhod 33-158 Blok-I
DECAYED

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

Launch Date

March 22, 1973

Launch Site

PLMSC

Launch Pad

LC43/4

Launch Vehicle

Voskhod 11A57

Orbital Elements

NORAD ID

06395

International Designator

1973-016B

Decay Date

3/30/1973

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Voskhod 33-158 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 12 Dec 2024

X Report 12 Dec 2024

SpaceX progresses with Starship developments and sets sights on NASA's upcoming 3D sky-mapping satellite launch.

Space Brief 12 Jul 2025

Space Brief 12 Jul 2025

Today's focus spans from major military training initiatives in orbit to key updates on drone policies and crucial satellite launches.

X Report 4 Mar 2025

X Report 4 Mar 2025

SpaceX faces a series of challenges with scrubbing the Starship Flight 8 launch and losing a Falcon 9 booster post-landing, while successfully deploying new Starlink satellites.

The Day Opportunity Changed Our View of Mars Forever

The Day Opportunity Changed Our View of Mars Forever

Twenty-one years ago, a golf cart-sized rover bounced to a stop inside a small crater on Mars, beginning one of the most remarkable chapters in space exploration history

NLRB Drops SpaceX Oversight Case, Booster 19 Tests Complete | KeepTrack X Report

NLRB Drops SpaceX Oversight Case, Booster 19 Tests Complete | KeepTrack X Report

US labor board drops oversight case against SpaceX. Booster 19 completes cryogenic testing at upgraded Massey's. SpaceX IPO expected to reshape space investment landscape.

Space Brief 5 Jul 2025

Space Brief 5 Jul 2025

Today's space highlights include China's first classified Shiyan-28B launch, Boeing's major satellite contract, new NASA budget allocations, and plans for shuttle Discovery's relocation.

Vulcan Set to Open 2026 With USSF-87 National Security Launch | KeepTrack Space Brief

Vulcan Set to Open 2026 With USSF-87 National Security Launch | KeepTrack Space Brief

ULA's Vulcan rocket preps for USSF-87 national security launch to open 2026. Sierra Space delivers SDA Tranche 2 satellites three months early. NASA delays spacewalk for Crew-11 medical issue.

Understanding Space Debris

Understanding Space Debris

From shattered satellites to exploded rocket stages, space debris poses a growing risk to satellites, space stations, and astronauts. Here's a deep dive into what causes space debris, notable generating events, and what we're doing about it.