SL-6 R/B(1) (08493)

COSPAR: 1975-121B | Alt Name: Molniya-M 31-567 Blok-I

DECAYED

Image

Additional Sources

Launch Details

Launch Date

December 17, 1975

Launch Site

PLMSC

Launch Pad

LC43/3

Launch Vehicle

Molniya 8K78M

Orbital Elements

NORAD ID

08493

International Designator

1975-121B

Decay Date

1/14/1976

Basic Satellite Info

Name

SL-6 R/B(1)

Alternative Name

Molniya-M 31-567 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.

SpaceX Plans Seven Rocket Launches From Six Global Sites This Week | KeepTrack X Report

SpaceX targets seven rocket launches from six global sites this week including two Falcon 9 missions from California. 29 Starlink satellites successfully deployed from Cape Canaveral on January 18.

Space Brief 8 Dec 2025

Today's edition covers SpaceX scrubbing and successfully launching Starlink satellites, AI innovations in spacecraft propulsion, and the impact of SPHERE's debris disk survey in discovering hidden asteroid belts.

Space Brief 4 Nov 2024

China's Tiangong space station completes crew rotation, Rocket Lab prepares for confidential launch, and Japan successfully launches military satellite with its H3 rocket.

X Report 9 Jun 2025

Tensions between SpaceX and the U.S. government escalate as President Trump's threats could have significant implications on the company's operations and future plans. Meanwhile, India takes a significant step in its space endeavors with a historic astronaut launch.

The $30 Million Toilet That Keeps Breaking on the Way to the Moon

Sixty years of space toilet engineering, a decade of development, and a $30 million contract - and the Artemis II crew still had to pee in bags on Day 1.

X Report 11 May 2025

SpaceX successfully launched 28 Starlink satellites from Florida, marking a significant milestone in their deployment strategy. This follows the recent launch of 26 satellites from California, highlighting ongoing expansion efforts.

Space Brief 25 Jan 2025

Today's Space Brief covers pivotal updates in military space capabilities, defense acquisitions, the UK's nuclear enhancements, and Boeing's financial challenges.

The Day Space Became Crowded

Eight years ago, a single Indian rocket launched 104 satellites into orbit, marking a pivotal moment when space tracking professionals realized the dawn of a new, congested era in orbital operations