COSMOS 639 DEB (07253)

COSPAR: 1974-019C | Alt Name: KDU part
DECAYED

Image
COSMOS 639 DEB Satellite Image
Additional Sources
Launch Details

Launch Date

April 4, 1974

Launch Site

PLMSC

Launch Pad

LC41/1

Launch Vehicle

Voskhod 11A57

Orbital Elements

NORAD ID

07253

International Designator

1974-019C

Decay Date

4/16/1974

Basic Satellite Info

Name

COSMOS 639 DEB

Alternative Name

KDU part

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

0

Diameter

0

Span

0

Dry Mass

0

Launch Mass

0

Shape

N/A

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

KDU part

Purpose

Unknown

Mission

Unknown

Manufacturer

TSSKB

Life Expectancy

Unknown

Bus

Zenit deb

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.

The Day Europe Changed the Game for Small Satellites

The Day Europe Changed the Game for Small Satellites

Thirteen years ago, a new rocket lifted off from the edge of the Amazon rainforest, marking Europe's entry into the small satellite launch market and carrying the dreams of university students across a continent

SpaceX Targets 600th Falcon Booster Landing on Starlink 17-22 | KeepTrack X Report

SpaceX Targets 600th Falcon Booster Landing on Starlink 17-22 | KeepTrack X Report

SpaceX attempts its 600th Falcon 9 booster landing during the Starlink 17-22 mission, adding 25 satellites from Vandenberg SFB.

The Day Space Station Crews Gained Their Window on the World

The Day Space Station Crews Gained Their Window on the World

Fifteen years ago, Space Shuttle Endeavour launched on a mission that would give International Space Station astronauts their most spectacular view of Earth through the innovative Cupola observatory

X Report 28 Jan 2025

X Report 28 Jan 2025

SpaceX successfully launches 21 Starlink satellites, nearing milestone of 7,000 in orbit. Boeing and Airbus consider divesting from space, impacting industry dynamics.

DARPA Robotic GEO Servicer Targeting Summer 2026 Launch | KeepTrack Space Brief

DARPA Robotic GEO Servicer Targeting Summer 2026 Launch | KeepTrack Space Brief

DARPA's robotic satellite servicing mission targets GEO orbit by summer 2026. NASA adds six SpaceX crew missions as Boeing Starliner remains uncertified.

X Report 21 May 2025

X Report 21 May 2025

SpaceX successfully launched 23 Starlink satellites using a new Falcon 9 rocket, marking a significant milestone for the company as it expands its satellite internet constellation.

Space Brief 9 Dec 2025

Space Brief 9 Dec 2025

Today's edition covers significant military space developments, including DIU tech consolidation discussions, NDAA budget expansions, and new military commands.

The Day America Pioneered Polar Orbits

The Day America Pioneered Polar Orbits

Sixty-six years ago, a Thor-Agena rocket thundered into the California sky carrying Discoverer 1, the first satellite attempt at polar orbit and the secret vanguard of Americas space reconnaissance program