X Report 10 Dec 2025
SpaceX celebrates significant milestones in satellite launches and contemplates a historic IPO while actively participating in the competitive landscape of space technology and services.
SL-12 PLAT (15576)
COSPAR: 1985-016C | Alt Name: Perekhodnik
DECAYED
Image
Additional Sources
Launch Details
Launch Date
February 21, 1985
Launch Site
Launch Pad
LC200/39
Launch Vehicle
Proton-K/DM
Orbital Elements
NORAD ID
15576
International Designator
1985-016C
Decay Date
2/22/1985
Basic Satellite Info
Name
SL-12 PLAT
Alternative Name
Perekhodnik
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
4
Diameter
3.7
Span
4
Dry Mass
800
Launch Mass
800
Shape
Cyl
Radar Cross Section
0.31
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Sredniy perekhodnik
Purpose
Unknown
Mission
Unknown
Manufacturer
ZIKH
Life Expectancy
Unknown
Bus
Adapter
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 18 Feb 2025
Today's briefs cover SpaceX landing a Falcon 9 in The Bahamas, first disabled astronaut prepped for a mission, and key company updates from Blue Origin and K2 Space.
New Glenn Achieves First Booster Reuse on Mission 3 | KeepTrack Space Brief
Blue Origin's New Glenn successfully reused its first stage booster for the first time on Mission 3, launching April 19. Booster reuse accelerates operational tempo.
Tesla-SpaceX 2027 Merger Predicted by Wall Street | KeepTrack X Report
Wall Street analyst Dan Ives predicts a Tesla-SpaceX merger by 2027, while a quantum magnetometer launches March 30 on Falcon 9 rideshare.
Space Brief 1 May 2025
Today's space brief covers NASA's shift to private companies for astronaut rescue, EU's potential collaboration with SES for satellite services, and notable military contract allocations. Plus, a satellite spotlight on LEMUR-2-KADI.
The Pentagon's Mystery Spaceplane Takes Off
On April 22, 2010, an Atlas V lifted off from Cape Canaveral carrying a reusable robotic spaceplane so secret that the Air Force would not even confirm its mission duration. It came back 224 days later, lighter, quieter, and more operational than anyone outside Washington had expected. Fifteen years later, the X-37B is still flying, and the military still will not say what it does.
Space Brief 5 Jul 2025
Today's space highlights include China's first classified Shiyan-28B launch, Boeing's major satellite contract, new NASA budget allocations, and plans for shuttle Discovery's relocation.
GPS III SV-10 Moves to Falcon 9 After Vulcan Grounded | KeepTrack X Report
SpaceX claims a 2nd GPS III launch as ULA's Vulcan investigation stalls, while ESA charters a Crew Dragon ISS mission and Starlink hits 30 launches in 2026.