Space Brief 21 Apr 2025
Today's briefing highlights SpaceX's recent launch of spy satellites, a US Space Force contract for deep space tracking, and advancements in quantum communications in space.
CZ-4 DEB (20859)
COSPAR: 1990-081X | Alt Name: deb CZ-4 Y2 Stage 3
DECAYED
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
20859
International Designator
1990-081X
Decay Date
8/20/2015
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
0.2795
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
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