X Report 22 May 2025
SpaceX successfully launched 23 Starlink satellites on a brand-new Falcon 9 rocket, while preparations ramp up for Starship Flight 9 and a pioneering commercial docking mission approaches.
SL-3 R/B (03155)
COSPAR: 1968-021B | Alt Name: Voskhod (N56) Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
March 16, 1968
Launch Site
PLMSC
Launch Pad
LC41/1
Launch Vehicle
Voskhod 11A57
Orbital Elements
NORAD ID
03155
International Designator
1968-021B
Decay Date
3/22/1968
Basic Satellite Info
Name
SL-3 R/B
Alternative Name
Voskhod (N56) 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
9.4
Diameter
2.7
Span
9.4
Dry Mass
3000
Launch Mass
3000
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.
Space Brief 29 Jun 2025
Today's space brief covers SpaceX's new contract with the U.S. Space Force, multiple Starlink launches, Rocket Lab's rapid launch success, and the final mission of Japan's H-IIA rocket.
X Report 22 Dec 2024
SpaceX successfully launches two rideshare missions to mid-inclination orbits, expanding their satellite deployment capabilities.
X Report 22 Nov 2025
Major challenges emerged with SpaceX's next-generation Starship booster testing, while Starlink deployments continued with successful launches.
X Report 25 Sep 2025
SpaceX continues to make strides with multiple launches, including 28 Starlink satellites and NASA's IMAP mission, highlighting its ongoing role in advancing space weather research.
LeoLabs Launches Delta Military SSA Platform | KeepTrack Space Brief
LeoLabs debuts Delta, a space monitoring tool designed for military operators to detect adversarial orbital activity beyond standard conjunction warnings.
China Launches VLEO Alliance With Sats Below 300km | KeepTrack Space Brief
China formalized a national VLEO industry alliance with multiple satellites sustaining operations below 300 kilometers altitude. Propulsion startups attracting investment.
Space Brief 15 Dec 2024
Anticipated NISAR launch now scheduled for March 2025; Rivada persists in broadband constellation quest despite setbacks; SpaceX scrubbed RRT-1 launch holds mystery.