Space Brief 3 Nov 2025
Highlighting India's significant military satellite launch, real-time satellite tracking developments in Europe, SpaceX's new rideshare mission, and more space industry news.
SL-12 R/B(AUX MOTOR) (13584)
COSPAR: 1982-093E | Alt Name: DM-31L SOZ-2
DECAYED
Image
Additional Sources
Launch Details
Launch Date
September 16, 1982
Launch Site
Launch Pad
LC200/40
Launch Vehicle
Proton-K/DM
Orbital Elements
NORAD ID
13584
International Designator
1982-093E
Decay Date
9/14/1983
Basic Satellite Info
Name
SL-12 R/B(AUX MOTOR)
Alternative Name
DM-31L SOZ-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
1.1
Diameter
0.5
Span
1.1
Dry Mass
60
Launch Mass
120
Shape
Cyl
Radar Cross Section
0.8
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
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
The Day Two Astronauts Proved We Could Reach the Moon
Sixty years ago, Frank Borman and James Lovell launched aboard Gemini 7 for a grueling 14-day mission that would prove humans could endure the journey to the moon and achieve the first true rendezvous in space
X Report 9 Nov 2024
SpaceX successfully launches a new batch of Starlink satellites, while Viasat seeks LEO capacity amid rising competition.
Japan's H3 Returns to Flight With 6 Satellites | KeepTrack Space Brief
Japan's H3 rocket successfully launched June 11, deploying 6 smallsats to orbit after December failure. First return-to-flight for JAXA's flagship heavy-lift vehicle.
Space Brief 14 Dec 2024
Today’s Space Brief covers significant developments such as SpaceX’s latest Starlink launch, the US Space Force testing modular satellite technology, and key long-range missile tests by the Pentagon.
Space Brief 8 Nov 2025
Today's Space Brief covers major developments in Pentagon procurement methods, strategic satellite intelligence advancements, and increasing interest in drone technology within the defense sector.
Transporter-16 Lofts 119 Payloads to SSO | KeepTrack X Report
SpaceX's Falcon 9 launches 119 payloads on Transporter-16, the 21st smallsat rideshare mission, from Vandenberg SFB at 1102 UTC.
Shenzhou-23 Docks at Tiangong; Crew Member Targets 1-Year Stay | KeepTrack Space Brief
Shenzhou-23 docked with Tiangong May 24 with 3 astronauts, including Hong Kong's first crew member. One will stay ~1 year in orbit.