SL-4 R/B (49270)

COSPAR: 2021-089B | Alt Name: Soyuz-2-1a No. 047 Blok-I

DECAYED

Image

Additional Sources

Launch Details

Launch Date

October 5, 2021

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC31

Launch Vehicle

Soyuz-2-1A

Orbital Elements

NORAD ID

49270

International Designator

2021-089B

Decay Date

10/8/2021

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-2-1a No. 047 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-0110

Equipment

Unknown

Power System

Unknown

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

NASA Pressures Blue Origin on HLS After New Glenn Explosion | KeepTrack Space Brief

NASA demands Blue Origin find alternate launcher for Artemis moon landers after New Glenn test explosion damaged Cape Canaveral LC-36. Schedule risk to lunar missions.

Space Brief 14 May 2025

Today's edition covers China's latest launches in their classified satellite programs, ongoing discussions in the U.S. Senate on missile defense, and the ever-escalating space debris crisis threatening national security.

SpaceX Starfall Reentry Capsule Debuts, X Report 23 Jun 2026

SpaceX Starfall reentry capsule debuted June 23: the 2,100 kg disk launched on a Falcon 9 from Cape Canaveral to demo cargo return from orbit.

Space Brief 3 Sep 2025

Today's Space Brief delves into NASA's lunar nuclear power initiative, a strategic Army data integration project, and a rare SpaceX Falcon booster launch. Also covered are significant advancements in military satellite technology and Navy unmanned surface vehicles.

X Report 26 Feb 2025

SpaceX progresses with Starship Flight 8 preparations, completes investigation into Flight 7 mishap, and prepares for upcoming launches.

Tesla-SpaceX 2027 Merger Predicted by Wall Street | KeepTrack X Report

Wall Street analyst Dan Ives predicts a Tesla-SpaceX merger by 2027, while a quantum magnetometer launches March 30 on Falcon 9 rideshare.

Space Brief 30 Jun 2025

Today's highlights include SpaceX's record-breaking launches, Japan's final H-2A launch, and significant developments in satellite data policies impacting weather forecasting.

X Report 6 Jun 2025

Today's SpaceX Brief highlights the imminent launch of the Ax-4 mission, notable milestones in Falcon rocket history, and the impact of political tensions on SpaceX operations.