Space Situational Awareness (SSA)
How our ability to track and predict objects in orbit has become the foundation of space safety in an increasingly crowded cosmic neighborhood
COSMOS 1644 DEB (15652)
COSPAR: 1985-027L | Alt Name: KDU part
DECAYED
Image
Additional Sources
Launch Details
Launch Date
April 3, 1985
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-U
Orbital Elements
NORAD ID
15652
International Designator
1985-027L
Decay Date
6/14/1985
Basic Satellite Info
Name
COSMOS 1644 DEB
Alternative Name
KDU part
Type
Debris
Status
Space Junk
Owner
GUKOS
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
0.48
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.
X Report 22 Nov 2024
SpaceX edges closer to increased Starship launch approvals, secures lunar rover delivery, eyes potential military collaboration, and continues rapid satellite deployment.
Air Force Selects General Atomics, Anduril for CCA Wingmen | KeepTrack Space Brief
Air Force awards CCA contracts to General Atomics and Anduril for autonomous fighter wingmen. Autonomy layer split across Anduril, Shield AI, and Collins Aerospace.
China Opens 2026 With Yaogan and Guowang Satellite Launches | KeepTrack Space Brief
China launches Yaogan spacecraft into unusual orbit and Guowang constellation satellites to start 2026. NASA and DOE plan lunar nuclear reactor by 2030. Space Force switches GPS launch rocket.
Falcon 9 to Lift Cygnus as Artemis II Hits Midpoint | KeepTrack X Report
Falcon 9 targets ISS Cygnus resupply as Artemis II reaches its halfway mark and SpaceX HLS commitment draws NASA praise.
X Report 28 Apr 2025
SpaceX marks a milestone with its 250th Starlink mission, continuing to expand its broadband satellite network.
Varda W-5 Reentry Lands in Australia, Senate Passes $839B Defense Bill | KeepTrack Space Brief
Varda Space's W-5 mission lands safely in Australia. Leonardo DRS wins SDA Tracking Layer Tranche 3 infrared payload contract. Senate passes $839B defense bill.
Space Brief 3 Dec 2025
Today's brief covers the integration of commercial and military space capabilities, a notable change in Crew 12 mission, advancements in digital training for space operations, and more.