X Report 30 Nov 2025
SpaceX successfully launched the Transporter-15 mission, deploying 140 payloads, while Elon Musk addressed media narratives related to Starlink's humanitarian efforts following recent disasters.
SL-8 R/B (21108)
COSPAR: 1991-009J | Alt Name: Kosmos-3M 87-204 Stage 2
Image
Additional Sources
Launch Details
Launch Date
February 12, 1991
Launch Site
PLMSC
Launch Pad
LC133/3
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
21108
International Designator
1991-009J
Epoch
Sat, 04 Jul 2026 01:01:11 GMT
Apogee
Calculating...
Perigee
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Inclination
74.05°
Right Ascension
222.24°
Eccentricity
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Argument of Perigee
288.55°
Period
118.18 min
Mean Motion
12.19 rev/day
Latitude
Calculating...
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 87-204 Stage 2
Type
Rocket Body
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21108U 91009J 26185.04249819 -.00000057 00000-0 -39251-3 0 9997
2 21108 74.0505 222.2447 0176244 288.5485 90.5222 12.18524575467717
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
5.3289
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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