X Report 27 Jul 2025
SpaceX's rapid advancements continued this weekend with two consecutive Starlink missions and preparations for the upcoming Crew-11 launch, showcasing its efficiency and commitment to expanding satellite broadband coverage.
SL-8 R/B (12139)
COSPAR: 1981-003B | Alt Name: Kosmos-3M 98-319 Stage 2
Image
Additional Sources
Launch Details
Launch Date
January 16, 1981
Launch Site
PLMSC
Launch Pad
LC132/1
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
12139
International Designator
1981-003B
Epoch
Sat, 04 Jul 2026 06:22:04 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
82.94°
Right Ascension
181.90°
Eccentricity
Calculating...
Argument of Perigee
131.62°
Period
95.06 min
Mean Motion
15.15 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SL-8 R/B
Alternative Name
Kosmos-3M 98-319 Stage 2
Type
Rocket Body
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 12139U 81003B 26185.26532698 .00022774 00000-0 54515-3 0 9996
2 12139 82.9361 181.8987 0250632 131.6229 230.6776 15.14759367332301
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
5.479
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
S3M
Purpose
Unknown
Mission
Unknown
Manufacturer
OAZ
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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