SL-4 R/B (43658)

COSPAR: 2018-082B | Alt Name: Soyuz-2-1b 31-216 Blok-I
DECAYED

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

Launch Date

October 25, 2018

Launch Site

PLMSC

Launch Pad

LC43/4

Launch Vehicle

Soyuz-2-1B

Orbital Elements

NORAD ID

43658

International Designator

2018-082B

Decay Date

8/4/2020

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-2-1b 31-216 Blok-I

Type

Rocket Body

Status

Space Junk

Owner

RVSNR

Country

Russia

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

Blok-I 14S54

Purpose

Unknown

Mission

Unknown

Manufacturer

PROGT

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.

Space Brief 11 Feb 2025

Space Brief 11 Feb 2025

Today's highlights include the debut of a new Chinese rocket, a successful Starlink launch, and concerns about Artemis 3. We also cover DoD developments and a notable SpaceX milestone.

X Report 7 Nov 2025

X Report 7 Nov 2025

SpaceX successfully launched 28 Starlink satellites while EchoStar enhances its stake in the company through a $2.6 billion spectrum deal, amid growing demands for space domain awareness.

Starlink Update: March 2024

Starlink Update: March 2024

As of March 2024, SpaceX's Starlink has made remarkable strides in its quest to provide global broadband internet access. With an astounding number of satellites already in orbit and ambitious plans for expansion, Starlink is on track to dominate Earth's orbit in the coming years.

X Report 19 Jan 2025

X Report 19 Jan 2025

SpaceX prepares to launch 27 Starlink satellites in its first mission since the recent Starship explosion, while the FAA investigates debris reports from the failed test flight.

GOES-G | The Day a Weather Satellite Exploded Over the Atlantic

GOES-G | The Day a Weather Satellite Exploded Over the Atlantic

Forty years ago today, a Delta 3914 lifted off Cape Canaveral with a weather satellite the country could not afford to lose. Seventy-one seconds later, its main engine cut off. Ninety-one seconds in, the range safety officer pressed his button. The third domino of a brutal 1986 had fallen.

Artemis 2 Targets April 1 Lunar Flyby with 4-Person Crew | KeepTrack Space Brief

Artemis 2 Targets April 1 Lunar Flyby with 4-Person Crew | KeepTrack Space Brief

NASA's Artemis 2 launches April 1 with Commander Reid Wiseman and 3 crew members for first crewed lunar flyby since Apollo 17 in 1972.

X Report 25 Nov 2025

X Report 25 Nov 2025

In today's report, we explore the latest updates from SpaceX's ongoing launch initiatives, Starship progress, and emerging competition in satellite internet, highlighting a new contender that could challenge Starlink's dominance.

The Day America Sent Two Secrets to the Sky

The Day America Sent Two Secrets to the Sky

Sixty-five years ago, America launched two very different space missions within hours of each other - one broadcast live to a fascinated nation, the other quietly reaching orbit from a fog-shrouded California launchpad while no one was watching