Space Brief 7 Sep 2025
Today's Space Brief covers China’s latest satellite launches, leadership changes in the U.S. Space Force, insights from hyperspectral imagery on an Iranian facility, SpaceX's Starlink mission, and more.
SL-7 R/B (07731)
COSPAR: 1975-026B | Alt Name: Kosmos-2 (N118) Stage 2
DECAYED
Image
Additional Sources
Launch Details
Launch Date
April 8, 1975
Launch Site
PLMSC
Launch Pad
LC133/3
Launch Vehicle
Kosmos 11K63
Orbital Elements
NORAD ID
07731
International Designator
1975-026B
Decay Date
9/9/1975
Explore in the Catalog
Basic Satellite Info
Name
SL-7 R/B
Alternative Name
Kosmos-2 (N118) Stage 2
Type
Rocket Body
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
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
8
Diameter
1.6
Span
8
Dry Mass
840
Launch Mass
840
Shape
Cyl
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
S1M
Purpose
Unknown
Mission
Unknown
Manufacturer
YUZH
Life Expectancy
Unknown
Bus
S1
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
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