X Report 8 Feb 2025
SpaceX makes strides on Starship launch pad, upcoming Starlink infusions from California and Florida, and regulatory challenges loom with FCC and C-band spectrum.
SL-4 R/B (08925)
COSPAR: 1976-060B | Alt Name: Voskhod 16-661 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
June 29, 1976
Launch Site
Launch Pad
LC31
Launch Vehicle
Voskhod 11A57
Orbital Elements
NORAD ID
08925
International Designator
1976-060B
Decay Date
7/4/1976
Explore in the Catalog
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
Voskhod 16-661 Blok-I
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
6.7
Diameter
2.7
Span
6.7
Dry Mass
2350
Launch Mass
2350
Shape
Cyl
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
11A57I
Purpose
Unknown
Mission
Unknown
Manufacturer
PROG
Life Expectancy
Unknown
Bus
Blok-I
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.
The Day Discovery Took Her Final Flight
Fourteen years ago, Space Shuttle Discovery thundered into orbit one last time, carrying a robot astronaut and capping a remarkable 27-year career that revolutionized space exploration
York Space Goes Public at $629M, Cold War JUMPSEAT Spy Satellites Declassified | KeepTrack Space Brief
York Space raises $629M in IPO to expand satellite manufacturing. NRO declassifies Cold War-era JUMPSEAT spy satellites. Lockheed to boost THAAD interceptor production from 96 to 400 per year.
Kratos Wins $446M Space Force Missile-Warning Contract | KeepTrack Space Brief
Kratos Defense awarded $446M Space Force contract for RMWT missile-warning ground systems. Rocket Lab secures $190M Pentagon deal for 20 hypersonic test flights.
Space Brief 24 Sep 2025
Key highlights on China's reusable rocket developments, U.S. military's Tranche 1 satellite launch, Space Force's weapons acquisition strategies, and more.
X Report 23 May 2025
The FAA has approved Starship Flight 9, paving the way for an upcoming test launch, while SpaceX's Dragon spacecraft is set to undock from the ISS after weather delays.
SpaceX Launches GPS Satellite in Third Mission Reassigned From ULA | KeepTrack Space Brief
SpaceX launches GPS satellite for Space Force — third consecutive GPS mission reassigned from ULA. Space Force nears selection of next-gen GEO spy satellite contractors. Northwood Space lands $49M deal.
SpaceX Lofts 45 Payloads Including Korean CAS500-2 | KeepTrack X Report
SpaceX's Falcon 9 rideshare lifted 45 satellites including South Korea's CAS500-2 Earth observer from Vandenberg at 0700 UTC May 3.