The Day a Car Started Its Journey to the Stars
Seven years ago, SpaceX revolutionized spaceflight by launching the most powerful operational rocket in the world, carrying with it a cherry-red Tesla Roadster that captured global imagination
SL-4 R/B (08348)
COSPAR: 1975-095B | Alt Name: Voskhod 41-790 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
October 1, 1975
Launch Site
Launch Pad
LC31
Launch Vehicle
Voskhod 11A57
Orbital Elements
NORAD ID
08348
International Designator
1975-095B
Decay Date
10/9/1975
Explore in the Catalog
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
Voskhod 41-790 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 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 15 Jul 2025
Crew-11 launch preparations ramp up, Starship propellant production begins, and a global launch roundup highlights upcoming missions.
Space Brief 7 Oct 2025
Explore the latest in satellite communications with Cubic's new terminals, strategic acquisitions by Firefly, China's IoT satellite achievements, and key military updates.
X Report 23 Apr 2025
SpaceX marks a significant milestone with its Bandwagon-3 mission, while Ukraine explores Starlink alternatives.
X Report 23 Feb 2025
SpaceX faces a setback with a Falcon 9 upper stage reentry issue, while NASA selects SpaceX for a new mission. Starlink expansions continue with multiple satellite launches.
X Report 25 Aug 2025
SpaceX faced delays in launching its 10th Starship test flight while successfully deploying a Cargo Dragon to resupply the ISS, marking a significant milestone in the ongoing collaboration with NASA.
NASA Postpones Spacewalk Over Medical Concern, Sierra Space Delivers SDA Satellites Early | KeepTrack Space Brief
NASA delays first 2026 spacewalk due to ISS crew medical issue. Sierra Space completes SDA Tranche 2 satellite structures ahead of schedule. Space Force advances Handle 2.0 standardization.