X Report 27 Nov 2024
SpaceX secures FCC nod for Starlink's direct-to-phone connectivity, lands NASA's Dragonfly mission, and sees new competition with the ZhuQue-2E launch.
SL-12 PLAT (25742)
COSPAR: 1999-027C | Alt Name: Perekhodnik
DECAYED
Image
Additional Sources
Launch Details
Launch Date
May 20, 1999
Launch Site
Launch Pad
LC81/23
Launch Vehicle
Proton-K/DM-2M
Orbital Elements
NORAD ID
25742
International Designator
1999-027C
Decay Date
5/21/1999
Basic Satellite Info
Name
SL-12 PLAT
Alternative Name
Perekhodnik
Type
Debris
Status
Space Junk
Owner
RVSNR
Country
Russia
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
11.24
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Sredniy perekhodnik
Purpose
Unknown
Mission
Unknown
Manufacturer
KHRR
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.
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.
X Report 22 Aug 2025
SpaceX successfully launched the U.S. Space Force's eighth X-37B spaceplane mission while preparing for an upcoming Starship launch. Meanwhile, the company continues to expand its Starlink satellite constellation.
Space Brief 6 Feb 2025
Today's brief covers a diverse range of topics, including reentry mission approvals, leadership changes in the Space Development Agency, and innovative military satellite communications.
Vulcan Centaur Launches GSSAP Surveillance Satellites for Space Force | KeepTrack Space Brief
ULA Vulcan Centaur launches USSF-87 with two GSSAP surveillance satellites to near-GEO orbit. NRO expands commercial imaging. Integrate raises $17M for classified platform.
Space Brief 1 Dec 2024
Today's highlights: China's Long March 12 boosts lunar ambitions, SpaceX supports NRO's satellite infrastructure, Firefly prepares lunar mission, and NASA partners with SpaceX for Titan exploration.
The Day Space Became Crowded
Eight years ago, a single Indian rocket launched 104 satellites into orbit, marking a pivotal moment when space tracking professionals realized the dawn of a new, congested era in orbital operations
X Report 29 Oct 2025
SpaceX embraces community support during Hurricane Melissa while advancing its Starbase infrastructure and launching more Starlink satellites.