COSMOS 429 DEB (05371)

COSPAR: 1971-061D | Alt Name: KDU
DECAYED

Image
COSMOS 429 DEB Satellite Image
Additional Sources
Launch Details

Launch Date

July 20, 1971

Launch Pad

LC31

Launch Vehicle

Voskhod 11A57

Orbital Elements

NORAD ID

05371

International Designator

1971-061D

Decay Date

8/4/1971

Basic Satellite Info

Name

COSMOS 429 DEB

Alternative Name

KDU

Type

Debris

Status

Space Junk

Owner

GUKOSR

Country

USSR

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

1

Diameter

0.4

Span

1

Dry Mass

140

Launch Mass

430

Shape

Frust

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

KDU

Purpose

Unknown

Mission

Unknown

Manufacturer

TSKBE3

Life Expectancy

Unknown

Bus

Zenit KDU

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.

Artemis 2 Crew First Lunar-Bound Humans Since 1972 | KeepTrack Space Brief

Artemis 2 Crew First Lunar-Bound Humans Since 1972 | KeepTrack Space Brief

Artemis 2 Orion carries first humans toward the Moon in 53 years. Spacecraft in good health after trans-lunar injection; lunar flyby observation plan due April 6.

Space Brief 26 Nov 2025

Space Brief 26 Nov 2025

Today's update covers new military space initiatives, impacts of drone threats in Europe, and advancements in secure cloud technology for NATO and Ukraine.

Pentagon Chief Tours Rocket Lab, Space Force Accelerates 2026 Acquisitions | KeepTrack Space Brief

Pentagon Chief Tours Rocket Lab, Space Force Accelerates 2026 Acquisitions | KeepTrack Space Brief

Pentagon chief Pete Hegseth tours Rocket Lab for Arsenal of Freedom strategy. Space Force accelerates 2026 acquisitions including GPS and tactical comms. Rhea Space wins $1.9M optical nav contract.

X Report 25 Oct 2025

X Report 25 Oct 2025

SpaceX prepares for a record-setting launch of Starlink satellites, while Iridium faces challenges against SpaceX's expanding services.

Space Brief 1 Dec 2025

Space Brief 1 Dec 2025

Today's brief covers China's latest classified satellite launch, breakups in orbital refueling experiments, exciting advancements in microsatellites, and SpaceX's remarkable strides in spaceflight.

Space Brief 14 Nov 2024

Space Brief 14 Nov 2024

Today's brief covers potential shifts in Space Force's strategy, new milestones in military satellite programs, and advancements in ground systems for missile defense. We'll also highlight Rocket Lab's latest contract win and critical design reviews in drone technology.

SpaceX Eyes $60B Cursor AI Acquisition Ahead of IPO | KeepTrack X Report

SpaceX Eyes $60B Cursor AI Acquisition Ahead of IPO | KeepTrack X Report

SpaceX secured a $60B option to acquire Cursor AI while launching its 40th Falcon 9 mission of 2026, deploying 24 more Starlink satellites from Vandenberg.

The Civilian Space Traffic System America Almost Didn't Build

The Civilian Space Traffic System America Almost Didn't Build

For nearly two decades, the U.S. Air Force and Space Force have been the world's unofficial civilian space traffic control system. The Department of Commerce's Traffic Coordination System for Space (TraCSS) is now taking over that job for commercial satellite operators - in stages, against persistent congressional pressure to kill the program, and with Department of Defense advocates pushing to make it happen before it is too late.