SL-4 R/B (56741)

COSPAR: 2023-071B | Alt Name: Soyuz-2-1a No. 064 Blok-I
DECAYED

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

Launch Date

May 24, 2023

Launch Pad

LC31

Launch Vehicle

Soyuz-2-1A

Orbital Elements

NORAD ID

56741

International Designator

2023-071B

Decay Date

5/26/2023

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-2-1a No. 064 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 374BL02A

Purpose

Unknown

Mission

Unknown

Manufacturer

PROGT

Life Expectancy

Unknown

Bus

Blok-I

Configuration

Unknown

Motor

RD-0980

Equipment

Unknown

Power System

Unknown

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

SpaceX Launches Third GPS Satellite Reassigned From ULA | KeepTrack X Report

SpaceX Launches Third GPS Satellite Reassigned From ULA | KeepTrack X Report

SpaceX successfully launches GPS satellite for Space Force — third consecutive GPS mission switched from ULA. EBAD demonstrates payload release module on Falcon 9 rideshare mission.

Mike Melvill, 124 Meters, and the Morning Space Went Private

Mike Melvill, 124 Meters, and the Morning Space Went Private

On 21 June 2004, a 63-year-old test pilot rode a homebuilt rocket plane to 100,124 meters above the Mojave Desert, clearing the edge of space by about the length of a city block. He came down the first private astronaut in history, holding a sign that read 'SpaceShipOne, GovernmentZero.'

X Report 29 Sep 2025

X Report 29 Sep 2025

In today's update, SpaceX successfully launched 28 Starlink satellites from Vandenberg, while Italy grapples with its satellite strategy amid rising reliance on Starlink services.

X Report 3 Aug 2025

X Report 3 Aug 2025

SpaceX bids farewell to LZ-1 while continuing its mission towards advancements in satellite technology and the ongoing Starlink project.

Space Brief 23 Nov 2024

Space Brief 23 Nov 2024

Today's highlights include Canada's and Australia's investment in hypersonic defense, China's successful test of an inflatable space module, and Sweden's support of Ukrainian missile and drone production.

Space Brief 5 Feb 2025

Space Brief 5 Feb 2025

Today's briefing covers strategic military developments including missile defense proposals and board realignments, intertwined with rising space defense exports and autonomous launcher progress.

X Report 19 Jul 2025

X Report 19 Jul 2025

SpaceX successfully launched 24 Starlink satellites from California while investigations begin on a possible Starship salvage operation near Mexico.

X Report 14 May 2025

X Report 14 May 2025

SpaceX conducted significant test firings and further expanded its satellite fleet, while the EU scrutinizes Starlink's market impact amid ongoing space industry negotiations.