Space Brief 13 Jan 2025
Today's brief covers Blue Origin's launch delay, SpaceX's upcoming Starlink mission, and highlights the YAOGAN-43 O1C satellite.
RESURS F-11 DEB (21605)
COSPAR: 1991-044D | Alt Name: KDU
DECAYED
Image
Additional Sources
Launch Details
Launch Date
June 28, 1991
Launch Site
PLMSC
Launch Pad
LC43/3
Launch Vehicle
Soyuz-U-PVB
Orbital Elements
NORAD ID
21605
International Designator
1991-044D
Decay Date
8/10/1991
Basic Satellite Info
Name
RESURS F-11 DEB
Alternative Name
KDU
Type
Debris
Status
Space Junk
Owner
UNKSR
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
425
Shape
Frust
Radar Cross Section
3.4
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
KDU
Purpose
Unknown
Mission
Unknown
Manufacturer
TSSKB
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.
X Report 14 Aug 2025
SpaceX successfully launched a batch of Starlink satellites today while introducing new features to enhance user experience. Their rideshare program continues to see increased demand, proving popular among customers.
Space Brief 28 Feb 2025
Today's brief covers defense industry dynamics, advancements in quantum sensor technology, and geopolitical challenges impacting military space operations.
JSC Vimpel
An analysis of Russia's independent space tracking system and how it compares to the established U.S. Space Surveillance Network
Space Brief 24 May 2025
Today's key space events include a milestone Falcon booster landing, advances in US military satellite operations, and a new missile defense initiative.
Space Brief 29 Nov 2024
Today's brief covers China's Beidou satellite plans, SpaceX's Starship advancements, potential Space Command HQ relocation, and more.
Space Brief 8 Jan 2025
Today's highlights include China's launch of Shijian-25 for on-orbit refueling tests, Pentagon's investment in defense technologies, and key military upgrades.
X Report 22 Dec 2024
SpaceX successfully launches two rideshare missions to mid-inclination orbits, expanding their satellite deployment capabilities.