SL-4 R/B (11336)

COSPAR: 1979-034B | Alt Name: Soyuz-U 38-407 Blok-I
DECAYED

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

Launch Date

April 20, 1979

Launch Site

PLMSC

Launch Pad

LC43/3

Launch Vehicle

Soyuz-U

Orbital Elements

NORAD ID

11336

International Designator

1979-034B

Decay Date

4/27/1979

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-U 38-407 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

11S510

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 28 Nov 2024

X Report 28 Nov 2024

SpaceX advances with Starship, gains FCC approval for new services, and predicts a future shift in spacecraft dominance.

X Report 28 Jun 2025

X Report 28 Jun 2025

SpaceX continues to dominate with two Starlink launches in one day, the unveiling of its final Crew Dragon, and facing legal challenges from Mexico regarding a recent Starship incident.

SpaceX IPO Raises $75B, SPCX Surges 20% on Day One | KeepTrack X Report

SpaceX IPO Raises $75B, SPCX Surges 20% on Day One | KeepTrack X Report

SpaceX debuted on Nasdaq as SPCX at $135/share, raising a record $75B and pushing Elon Musk's net worth past $1 trillion for the first time.

Starship V3 Flight 12 Four Weeks Out, X Report 11 Mar 2026

Starship V3 Flight 12 Four Weeks Out, X Report 11 Mar 2026

Starship V3 timeline: Musk puts Flight 12 about 4 weeks out, early to mid April 2026. SpaceX also hit 30 missions of 2026 with the 15,000-lb EchoStar 25.

X Report 1 Sep 2025

X Report 1 Sep 2025

SpaceX successfully launched 28 Starlink satellites from Florida, continuing its momentum in expanding global internet coverage.

X Report 9 Feb 2025

X Report 9 Feb 2025

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

The Day Europe Changed the Game for Small Satellites

The Day Europe Changed the Game for Small Satellites

Thirteen years ago, a new rocket lifted off from the edge of the Amazon rainforest, marking Europe's entry into the small satellite launch market and carrying the dreams of university students across a continent

Space Brief 3 Jul 2025

Space Brief 3 Jul 2025

Today's coverage includes the cancellation of DARPA's DRACO nuclear propulsion project, global shifts in Earth observation strategy, and new developments in satellite technology and military collaborations.