The Day Electric Propulsion Changed Spaceflight Forever
Fifty-five years ago, a revolutionary spacecraft launched from California carrying technology that would transform how we explore the solar system
CZ-4B R/B (49493)
COSPAR: 2021-107B | Alt Name: CZ-4B Y52 Stage 3
DECAYED
Image
Additional Sources
Launch Details
Launch Date
November 20, 2021
Launch Site
TAISC
Launch Pad
LC9
Launch Vehicle
Chang Zheng 4B
Orbital Elements
NORAD ID
49493
International Designator
2021-107B
Decay Date
1/26/2022
Basic Satellite Info
Name
CZ-4B R/B
Alternative Name
CZ-4B Y52 Stage 3
Type
Rocket Body
Status
Space Junk
Owner
CNSA
Country
China
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
A rocket body, also commonly referred to as an upper stage or spent rocket stage, is the structural shell left behind after a rocket has delivered its payload to orbit. These large and often heavy pieces of space hardware can remain in orbit for years, posing significant collision hazards as part of the growing space debris problem. If left uncontrolled, rocket bodies have the potential to reenter Earth's atmosphere unpredictably, which can lead to falling debris in populated areas. Additionally, they risk colliding with operational satellites or the International Space Station, creating more debris and putting human life at risk.
Physical Characteristics
Length
6.9
Diameter
2.9
Span
6.9
Dry Mass
1000
Launch Mass
1000
Shape
Cyl
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
CZ-4B Stage 3
Purpose
Unknown
Mission
Unknown
Manufacturer
SAST
Life Expectancy
Unknown
Bus
CZ-4 Stage 3
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
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