The Day We First Landed on Venus
On December 15, 1970, a battered Soviet probe accomplished something no spacecraft had done before - it survived landing on another world and lived to tell about it.
SL-6 PLAT (09559)
COSPAR: 1976-112C | Alt Name: BOZ
DECAYED
Image
Additional Sources
Launch Details
Launch Date
November 25, 1976
Launch Site
Launch Pad
LC31
Launch Vehicle
Molniya 8K78M
Orbital Elements
NORAD ID
09559
International Designator
1976-112C
Decay Date
1/5/1977
Explore in the Catalog
Basic Satellite Info
Name
SL-6 PLAT
Alternative Name
BOZ
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
2.3
Span
1
Dry Mass
328
Launch Mass
328
Shape
Cyl
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
BOZ
Purpose
Unknown
Mission
Unknown
Manufacturer
NPOE
Life Expectancy
Unknown
Bus
BOZ
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.
SpaceX Resumes Falcon 9 Launches After Investigating Upper Stage Anomaly
SpaceX successfully returns to flight with a Starlink mission, detailing the cause of the July 11 anomaly and implementing fixes to prevent future incidents.
SpaceX Accuses Amazon of Debris Violations at FCC | KeepTrack X Report
SpaceX filed an FCC complaint against Amazon over orbital debris violations as Starship V3 gets a maiden voyage date and a $178.5M Space Force deal lands.
Deep Space Advanced Radar Capability (DARC)
How a groundbreaking radar network is transforming our ability to monitor threats in deep space while strengthening international security partnerships
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 6 Nov 2025
Today's briefing covers Iceye's new aerospace service for defense clients, ESA's plan for dual-use satellites, and key defense agreements impacting satellite technology.
Falcon 9 Lofts 5-Ton Cygnus XL to ISS | KeepTrack X Report
SpaceX's Falcon 9 delivered Northrop Grumman's second Cygnus XL — carrying over 5 tons of cargo — to the ISS on April 11, 2026.
Space Brief 31 Aug 2025
SpaceX makes headlines with dual Starlink launches, Rocket Lab inaugurates new launch complex, while AI's impact on space missions and satellite technology continues to stir discussions.