SL-4 R/B (06189)

COSPAR: 1972-071B | Alt Name: Voskhod (N198) Blok-I

DECAYED

Image

Additional Sources

Launch Details

Launch Date

September 16, 1972

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC31

Launch Vehicle

Voskhod 11A57

Orbital Elements

NORAD ID

06189

International Designator

1972-071B

Decay Date

9/24/1972

Explore in the Catalog

Blok-I bus USSR satellites Rocket Bodies

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Voskhod (N198) 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.

Vigoride 5 and the Space Tug That Had to Work

Object 55056 rode a SpaceX rideshare into orbit carrying more than customer satellites. It carried the survival of Momentus, a company that had already lost its founder to a national security review, settled SEC fraud charges, and watched its first space tug die in orbit.

X Report 30 May 2025

SpaceX embarks on another milestone as it prepares to launch an advanced GPS satellite for the U.S. Space Force today, aiming for a record 170 launches this year.

Crew-11 Medical Evacuation Set for January 14, Starlink Mission Succeeds | KeepTrack X Report

NASA confirms first-ever ISS medical evacuation for January 14 via Crew Dragon. SpaceX launches 29 Starlink satellites in third mission of 2026. Artemis 2 moon mission timeline unaffected.

Space Brief 25 Dec 2025

Today's highlights include the Pentagon's report on China's military buildup, Innospace's upcoming launch plans, Starlink's rapid growth, China's significant space strides in 2025, and India's successful deployment of BlueBird 6.

Andøya Spaceport

Europe's Arctic gateway to orbit. How Norway's Andøya Spaceport is positioning itself as the continent's answer to launch congestion - and what the failed Isar Aerospace test flight means for the road ahead.

FAA Grounds Starship V3 After Flight 12, X Report 28 May 2026

FAA grounds SpaceX Starship V3 after the Flight 12 mishap, freezing the launch schedule. Plus a $2.29B Space Force contract and 10,397 working Starlinks.

X Report 28 Dec 2024

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

Artemis II Crew Sets Human Distance Record at Moon | KeepTrack Space Brief

Artemis II crew surpassed Apollo 13's distance record during April 6 lunar flyby. Orion carried 4 astronauts—including Canadian Jeremy Hansen—farther from Earth than any humans.