X Report 12 Feb 2025
SpaceX swaps Crew Dragon capsules with NASA to accelerate Crew-10 launch, and successfully launches multiple Starlink satellites into orbit.
SL-12 PLAT (12939)
COSPAR: 1981-110B | Alt Name: D-1-6L SOZ-1
DECAYED
Image
Additional Sources
Launch Details
Launch Date
November 4, 1981
Launch Site
Launch Pad
LC200/39
Launch Vehicle
Proton-K/D-1
Orbital Elements
NORAD ID
12939
International Designator
1981-110B
Decay Date
11/5/1981
Basic Satellite Info
Name
SL-12 PLAT
Alternative Name
D-1-6L SOZ-1
Type
Debris
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
Space debris, also known as space junk, encompasses all non-functional objects orbiting Earth such as defunct satellites, spent rocket stages, and fragments from collisions or disintegrations. Over time, this debris can accumulate and create an increasingly hazardous environment in orbit. Even tiny fragments, traveling at extremely high velocities, can inflict significant damage on operational satellites and spacecraft. If left unmanaged, the density of debris raises the risk of catastrophic collisions and further fragmentation, compounding the problem and threatening the safety and sustainability of space activities.
Physical Characteristics
Length
1
Diameter
0.6
Span
1
Dry Mass
56
Launch Mass
110
Shape
Cyl
Radar Cross Section
Unknown
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.
X Report 15 Jul 2025
Crew-11 launch preparations ramp up, Starship propellant production begins, and a global launch roundup highlights upcoming missions.
Intel Partners on Musk's Terafab AI Chip Fab | KeepTrack X Report
Intel joins Terafab, Elon Musk's Austin AI chip complex, to supply SpaceX and Tesla as Falcon 9 prepares a Cygnus ISS run.
The Day Soviet Women Reached for the Stars
Sixty-three years ago, the Soviet Union selected the world's first female cosmonaut training group, launching a new era in human spaceflight that would transform our understanding of gender equality in space exploration
X Report 5 Dec 2024
SpaceX achieves new milestones with Starlink launches, and Elon Musk's influence is a point of discussion. Telesat makes strides amid Starlink's growing dominance.
X Report 2 Feb 2025
SpaceX successfully launched 43 Starlink satellites across two missions, marking significant achievements at Cape Canaveral and Vandenberg Space Force Bases.
Space Brief 10 Dec 2024
Today's highlights include a new 5G demonstration launch on Firefly, potential supply chain interruptions in the defense sector, and updates on Artemis and ULA launches.
Falcon Heavy Attempts ViaSat-3 F3 Launch After Weather Scrub | KeepTrack X Report
SpaceX's Falcon Heavy targets a second launch attempt for ViaSat-3 F3, while Artemis III slips to late 2027 and Musk earns a Mars milestone bonus.