SL-4 R/B (12085)

COSPAR: 1980-096B | Alt Name: Soyuz-U 23-473 Blok-I

DECAYED

Image

Additional Sources

Launch Details

Launch Date

December 1, 1980

Launch Site

PLMSC

Launch Pad

LC43/3

Launch Vehicle

Soyuz-U

Orbital Elements

NORAD ID

12085

International Designator

1980-096B

Decay Date

12/9/1980

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-U 23-473 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.

Hypersonica Missile Hits Mach 6 in Norway Flight Test | KeepTrack Space Brief

Hypersonica completes Mach 6+ hypersonic missile flight test in Norway covering 300+ km. Pentagon seeks commercial GEO spy satellites. Gilat wins $9M Israeli defense satcom deal.

Roman Space Telescope Arrives at KSC for August 30 Falcon Heavy Launch | KeepTrack Space Brief

NASA's $4.3B Nancy Grace Roman Space Telescope arrived at Kennedy Space Center for 70 days of prelaunch processing ahead of its August 30 Falcon Heavy launch.

Vietnam Licenses Starlink for 600K Terminals, Isaacman Plans Roscosmos Visit | KeepTrack Space Brief

Vietnam approves Starlink with up to 600,000 terminals and 4 gateway stations. SpaceX hits 600th Falcon 9 launch. NASA's Isaacman plans Roscosmos meeting and Soyuz visit.

X Report 6 May 2025

SpaceX prepares for its 250th mission from SLC-40, while Starlink experiences a surge during a crisis in Spain and Portugal. Additionally, SpaceX celebrates the official designation of Starbase City, aiming to boost launch capabilities.

Iran Strikes UAE and Saudi Targets, Space Force Opens Tracking to Commercial Firms | KeepTrack Space Brief

Iran launches drones and missiles at UAE and Saudi targets. Space Force opens secretive tracking data to commercial firms. Falcon 9 breakup linked to lithium pollution in upper atmosphere.

The Day a Jupiter-Bound Spacecraft Traveled Past Venus

Thirty-five years ago, NASA's Galileo spacecraft made a crucial flyby of Venus, pioneering a complex path through the inner solar system that would revolutionize planetary exploration

Space Force Halts All Vulcan Missions Over Solid Booster Issue | KeepTrack Space Brief

Space Force suspends all Vulcan launches pending solid rocket booster investigation. Rocket Lab scrubs HASTE hypersonic vehicle launch. Military space funding hits record highs.

Version 10.0.0 Release Notes

The latest update introduces 3D satellite FOV cones, advanced sensor capabilities, and enhanced timelines, improving the way users interact with satellite data.