The Korean Optical Wide-field patroL-Network (OWL-Net)
South Korea's sophisticated network of robotic telescopes provides critical space situational awareness while strengthening the nation's position in space security amid regional tensions
SJ-21 AKM (49382)
COSPAR: 2021-094C | Alt Name: SJ-21 subsatellite
Image
Additional Sources
Launch Details
Launch Date
October 24, 2021
Launch Site
XICLF
Launch Pad
LC2
Launch Vehicle
Chang Zheng 3B
Orbital Elements
NORAD ID
49382
International Designator
2021-094C
Epoch
Thu, 02 Jul 2026 15:14:36 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
11.31°
Right Ascension
39.61°
Eccentricity
Calculating...
Argument of Perigee
164.03°
Period
1451.41 min
Mean Motion
0.99 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SJ-21 AKM
Alternative Name
SJ-21 subsatellite
Type
Rocket Body
Status
Space Junk
Owner
SAST
Country
China
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 49382U 21094C 26183.63513993 -.00000026 00000-0 00000+0 0 9999
2 49382 11.3119 39.6059 0002489 164.0298 211.3480 0.99214062 17649
Source: Celestrak
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
1
Diameter
1
Span
1
Dry Mass
200
Launch Mass
200
Shape
Box
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Unknown
Purpose
Technology
Mission
Technology
Manufacturer
SAST
Life Expectancy
Unknown
Bus
SJ21
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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