Space Brief 11 Dec 2025
Today's brief highlights key developments in space technology, military space activities, and satellite refueling initiatives. Discover the latest on GEO satellite refueling, Blue Origin's New Glenn, and more.
SL-12 R/B(AUX MOTOR) (09541)
COSPAR: 1976-107E | Alt Name: DM-6L SOZ-2
DECAYED
Image
Additional Sources
Launch Details
Launch Date
October 26, 1976
Launch Site
Launch Pad
LC81/24
Launch Vehicle
Proton-K/DM
Orbital Elements
NORAD ID
09541
International Designator
1976-107E
Decay Date
5/5/1977
Explore in the Catalog
Basic Satellite Info
Name
SL-12 R/B(AUX MOTOR)
Alternative Name
DM-6L 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
0.403
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.
Space Brief 14 Mar 2025
Today’s highlights include new defense initiatives in the U.S., potential strategic shifts in Europe, and the establishment of council to counter security threats.
Space Brief 4 Sep 2025
Today's briefing covers a surprise launch by Israel, a milestone missile contract for Lockheed Martin, and updates on Indian missile defense strategies.
The $30 Million Toilet That Keeps Breaking on the Way to the Moon
Sixty years of space toilet engineering, a decade of development, and a $30 million contract - and the Artemis II crew still had to pee in bags on Day 1.
Space Brief 23 Nov 2025
Today's highlights include a space debris incident involving China's spacecraft, development advancements for military space missions, and a notable setback for SpaceX's Starship booster.
X Report 10 Jun 2025
Exciting advancements from SpaceX include the debut of a new Dragon capsule for Axiom Space, continued Starlink deployments, and significant shifts in U.S. rural broadband funding that could benefit Starlink.
Starlink Launch Cadence: 54 Sats in One Day, X Report 13 Mar 2026
SpaceX Starlink launch cadence 2026: missions 26 and 27 lift off 37 minutes apart on March 13, with 25 and 29 satellites per Falcon 9, 54 in one morning.
The Day Columbia's Crew Shared Their Vision of Peace
Twenty-two years ago, the crew of Space Shuttle Columbia awakened to John Lennon's 'Imagine' and shared a profound message about unity and peace that would become part of their enduring legacy