SpaceX Resumes Falcon 9 Launches After Investigating Upper Stage Anomaly
SpaceX successfully returns to flight with a Starlink mission, detailing the cause of the July 11 anomaly and implementing fixes to prevent future incidents.
SL-8 R/B (21876)
COSPAR: 1992-008B | Alt Name: Kosmos-3M 78-418 Stage 2
Image
Additional Sources
Launch Details
Launch Date
February 17, 1992
Launch Site
PLMSC
Launch Pad
LC133/3
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
21876
International Designator
1992-008B
Epoch
Sat, 04 Jul 2026 06:38:36 GMT
Apogee
Calculating...
Perigee
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Inclination
82.93°
Right Ascension
181.08°
Eccentricity
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Argument of Perigee
166.58°
Period
104.65 min
Mean Motion
13.76 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
SL-8 R/B
Alternative Name
Kosmos-3M 78-418 Stage 2
Type
Rocket Body
Status
Space Junk
Owner
RVSNR
Country
Russia
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21876U 92008B 26185.27680762 .00000151 00000-0 13911-3 0 9998
2 21876 82.9261 181.0808 0034981 166.5785 204.3674 13.75981403725453
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
4.2
Diameter
2.4
Span
4.2
Dry Mass
1434
Launch Mass
1434
Shape
Cyl
Radar Cross Section
5.594
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
S3M
Purpose
Unknown
Mission
Unknown
Manufacturer
POL
Life Expectancy
Unknown
Bus
S3
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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