Space Brief 9 Jun 2025
Key space events for today include potential changes in US space policy involving SpaceX, uncertainties regarding NASA's Starliner, and China's new steps in asteroid exploration.
SL-12 R/B(AUX MOTOR) (15773)
COSPAR: 1985-042E | Alt Name: DM2-8L SOZ-1
Image
Additional Sources
Launch Details
Launch Date
May 30, 1985
Launch Site
Launch Pad
LC200/40
Launch Vehicle
Proton-K/DM-2
Orbital Elements
NORAD ID
15773
International Designator
1985-042E
Epoch
Fri, 03 Jul 2026 21:16:43 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
66.59°
Right Ascension
244.35°
Eccentricity
Calculating...
Argument of Perigee
232.09°
Period
100.83 min
Mean Motion
14.28 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SL-12 R/B(AUX MOTOR)
Alternative Name
DM2-8L SOZ-1
Type
Rocket Body
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 15773U 85042E 26184.88661078 .00000083 00000-0 67533-4 0 9996
2 15773 66.5873 244.3525 0039070 232.0906 301.3367 14.28152912138343
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
0.6
Span
1
Dry Mass
56
Launch Mass
110
Shape
Cyl
Radar Cross Section
0.4764
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
SOZ
Purpose
Unknown
Mission
Unknown
Manufacturer
NPOE
Life Expectancy
Unknown
Bus
SOZ
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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