CZ-4B R/B (46397)

COSPAR: 2020-064B | Alt Name: CZ-4B Y46 Stage 3
DECAYED

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

Launch Date

September 7, 2020

Launch Site

TAISC

Launch Pad

LC9

Launch Vehicle

Chang Zheng 4B

Orbital Elements

NORAD ID

46397

International Designator

2020-064B

Decay Date

1/1/2021

Basic Satellite Info

Name

CZ-4B R/B

Alternative Name

CZ-4B Y46 Stage 3

Type

Rocket Body

Status

Space Junk

Owner

CNSA

Country

China

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

6.9

Diameter

2.9

Span

6.9

Dry Mass

1000

Launch Mass

1000

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

CZ-4B Stage 3

Purpose

Unknown

Mission

Unknown

Manufacturer

SAST

Life Expectancy

Unknown

Bus

CZ-4 Stage 3

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.

X Report 4 Jun 2025

X Report 4 Jun 2025

SpaceX continues strong momentum in June with successful satellite launches, a new service from Telstra, and updates on upcoming missions. Key developments are shaping the future of both space travel and satellite communications.

X Report 10 Sep 2025

X Report 10 Sep 2025

SpaceX makes strides with United States national security satellites, securing substantial spectrum for Starlink's direct-to-cell services, and preparing for future Starship developments.

Space Force Eyes Space Tugs, On-Orbit Refueling by 2030 | KeepTrack Space Brief

Space Force Eyes Space Tugs, On-Orbit Refueling by 2030 | KeepTrack Space Brief

Space Force commits to operational space tugs and on-orbit refueling by 2030. New capabilities will complicate conjunction analysis for GEO and MEO satellite tracking.

Space Brief 8 Feb 2025

Space Brief 8 Feb 2025

Stay updated on key orbital events including Rocket Lab's upcoming launch, significant legislative moves in space traffic management, and changes in defense policies impacting space operations.

The Day the Soviets Built a World in Orbit

The Day the Soviets Built a World in Orbit

Forty years ago today, the USSR launched a 20-ton aluminum cylinder into low Earth orbit and called it 'Peace.' Over the next 15 years, Mir would host 104 people from 12 countries, survive a fire and a collision, and quietly teach humanity how to live in space.

Space Brief 20 Aug 2024

Space Brief 20 Aug 2024

Polaris Dawn's upcoming commercial spacewalk, successful lunar orbit by Chinese spacecraft, and more space news including SpaceX's Starlink mission, RFA's static-fire failure, and advances in satellite technology.

X Report 11 Mar 2025

X Report 11 Mar 2025

A week of highs and lows for SpaceX, including weather-related delays and a return to Falcon launches.

Katalyst Link Clears Tests for $500M SPARCS Rescue | KeepTrack Space Brief

Katalyst Link Clears Tests for $500M SPARCS Rescue | KeepTrack Space Brief

Katalyst's Link spacecraft passes key testing milestone ahead of June 2026 launch to rescue NASA's $500M SPARCS telescope. In-space servicing mission will create trackable conjunction risk during approach and docking phase.