CZ-4 DEB (20857)

COSPAR: 1990-081V | Alt Name: deb CZ-4 Y2 Stage 3
DECAYED

Image
CZ-4 DEB Satellite Image
Additional Sources
Launch Details

Launch Date

September 3, 1990

Launch Site

TAISC

Launch Pad

LC7

Launch Vehicle

Chang Zheng 4

Orbital Elements

NORAD ID

20857

International Designator

1990-081V

Decay Date

11/20/2013

Basic Satellite Info

Name

CZ-4 DEB

Alternative Name

deb CZ-4 Y2 Stage 3

Type

Debris

Status

Space Junk

Owner

MAI2

Country

China

Constellation

N/A

Related Satellites

Major Events

N/A

Summary
Space debris, also known as space junk, encompasses all non-functional objects orbiting Earth such as defunct satellites, spent rocket stages, and fragments from collisions or disintegrations. Over time, this debris can accumulate and create an increasingly hazardous environment in orbit. Even tiny fragments, traveling at extremely high velocities, can inflict significant damage on operational satellites and spacecraft. If left unmanaged, the density of debris raises the risk of catastrophic collisions and further fragmentation, compounding the problem and threatening the safety and sustainability of space activities.
Physical Characteristics

Length

0

Diameter

0

Span

0

Dry Mass

0

Launch Mass

0

Shape

N/A

Radar Cross Section

0.1316

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Unknown

Purpose

Unknown

Mission

Unknown

Manufacturer

Unknown

Life Expectancy

Unknown

Bus

Unknown

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 24 Apr 2025

X Report 24 Apr 2025

SpaceX continues its historic launch cadence, includes Starlink expansion and business strategies in focus.

The Day Columbia's Crew Shared Their Vision of Peace

The Day Columbia's Crew Shared Their Vision of Peace

Twenty-two years ago, the crew of Space Shuttle Columbia awakened to John Lennon's 'Imagine' and shared a profound message about unity and peace that would become part of their enduring legacy

SpaceX Hits 600th Falcon 9 Launch, NASA SLS Leak Tests Struggle | KeepTrack Space Brief

SpaceX Hits 600th Falcon 9 Launch, NASA SLS Leak Tests Struggle | KeepTrack Space Brief

SpaceX reaches 600th Falcon 9 launch with Starlink 17-13 from Vandenberg. NASA SLS hydrogen leak repairs only partially successful. New book explores forces shaping space.

Falcon 9 Resumes Flights, Starbase Approved to Double in Size | KeepTrack X Report

Falcon 9 Resumes Flights, Starbase Approved to Double in Size | KeepTrack X Report

Falcon 9 resumes flights with 25 Starlink satellites from Vandenberg. SpaceX test-fires rocket ahead of Crew-12 launch. Starbase approved to nearly double its launch site footprint.

X Report 31 Aug 2025

X Report 31 Aug 2025

SpaceX successfully launched its ninth Starlink mission of the month, boosting broadband coverage with additional satellites deployed from both coasts. The latest missions underscore the company's commitment to expanding global internet access.

Space Brief 29 Sep 2025

Space Brief 29 Sep 2025

Today's Space Brief discusses significant military satellite launches, groundbreaking agreements for lunar nuclear power, and Italy's satellite strategy dilemma. Additionally, we cover the Dream Chaser's upcoming demonstration flight and new Pentagon contracts for rocket motor production.

The Day Electric Propulsion Changed Spaceflight Forever

The Day Electric Propulsion Changed Spaceflight Forever

Fifty-five years ago, a revolutionary spacecraft launched from California carrying technology that would transform how we explore the solar system

Space Force Eyes Asteroid Mining, Clashes With Congress on R-GPS | KeepTrack Space Brief

Space Force Eyes Asteroid Mining, Clashes With Congress on R-GPS | KeepTrack Space Brief

Space Force sees strategic value in asteroid mining. Congress pushes back on R-GPS phase-out over jamming risks. BlackSky expands Gen 3 defense contracts.