SL-6 R/B(2) (04785)

COSPAR: 1970-101D | Alt Name: Blok-L
DECAYED

Image
SL-6 R/B(2) Satellite Image
Additional Sources
Launch Details

Launch Date

November 27, 1970

Launch Site

PLMSC

Launch Pad

LC43/4

Launch Vehicle

Molniya 8K78M

Orbital Elements

NORAD ID

04785

International Designator

1970-101D

Decay Date

1/2/1976

Basic Satellite Info

Name

SL-6 R/B(2)

Alternative Name

Blok-L

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

3.3

Diameter

2.4

Span

3.3

Dry Mass

1000

Launch Mass

4500

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Blok-L

Purpose

Unknown

Mission

Unknown

Manufacturer

TSKBEM

Life Expectancy

Unknown

Bus

Blok-L

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.

Space Brief 26 Aug 2024

Space Brief 26 Aug 2024

Today's briefing covers an exciting new satellite launch, a significant reentry, and unexpected space debris from a fragmentation event.

X Report 26 Sep 2025

X Report 26 Sep 2025

SpaceX has been active, with successful launches of Starlink satellites and major developments at Cape Canaveral, signaling a competitive edge in satellite communication and launch capabilities.

X Report 28 Dec 2024

X Report 28 Dec 2024

SpaceX wraps up a stellar year with Starship achievements and prepares for a lunar triple-shot in 2025.

The Day America Shot Down Its Own Spy Satellite

The Day America Shot Down Its Own Spy Satellite

Seventeen years ago, a Navy cruiser in the Pacific fired a missile at a tumbling reconnaissance satellite that had failed within hours of reaching orbit - officially to prevent toxic fuel from reaching the ground, unofficially to prove something far more significant to China and the world

X Report 5 Nov 2025

X Report 5 Nov 2025

Today's key development highlights SpaceX's upcoming launch of 29 Starlink satellites from Cape Canaveral, marking the start of an active month for the satellite constellation.

Space Brief 12 Aug 2025

Space Brief 12 Aug 2025

Today's brief covers a groundbreaking national security mission for ULA's Vulcan, NASA's collaboration with LeoLabs for enhanced collision avoidance, and SEOPS' new satellite tracking services, among other key developments.

Space Brief 12 Jun 2025

Space Brief 12 Jun 2025

Today's Space Brief covers major developments including the public debut of Voyager Technologies, advancements in defense by Sierra Space, and Pentagon's mega-constellation challenges. Also featured are new software selections by the Space Force and legislative actions on acquisition pilots.

X Report 9 Aug 2025

X Report 9 Aug 2025

SpaceX's Crew-10 astronauts are set to return to Earth after a five-month mission, while the company prepares for the launch of 24 new Starlink satellites from Vandenberg Space Force Base.