X Report 10 Nov 2025
SpaceX successfully launched 29 Starlink satellites, bolstering its broadband network and expanding global internet coverage.
SL-4 R/B (14257)
COSPAR: 1983-083B | Alt Name: Soyuz-U 24-252 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
August 10, 1983
Launch Site
Launch Pad
LC1
Launch Vehicle
Soyuz-U
Orbital Elements
NORAD ID
14257
International Designator
1983-083B
Decay Date
8/14/1983
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
Soyuz-U 24-252 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
11S510
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.
Pentagon Chief Tours Rocket Lab, Space Force Accelerates 2026 Acquisitions | KeepTrack Space Brief
Pentagon chief Pete Hegseth tours Rocket Lab for Arsenal of Freedom strategy. Space Force accelerates 2026 acquisitions including GPS and tactical comms. Rhea Space wins $1.9M optical nav contract.
X Report 21 Jun 2025
Today's report highlights the causes behind a recent Starship explosion, a significant delay in Axiom-4's launch, and the ongoing tension surrounding SpaceX's market dominance.
Space Force Awards $1.8B Andromeda Program to 14 Firms | KeepTrack Space Brief
Space Force selects 14 companies for $1.8 billion Andromeda program to replace GSSAP geosynchronous surveillance satellites with commercial alternatives through 2036.
Army Recruiting 1,000 Space Specialists Alongside Space Force | KeepTrack Space Brief
Army launches space career field seeking 1,000 new specialists. HASC chair Rogers eyes $1.5T defense budget. Army and Marines share fire mission data via JADC2.
X Report 3 Nov 2025
SpaceX completed a successful Bandwagon rideshare mission, launching a private space station pathfinder along with multiple satellites, marking another significant milestone in 2025's launch schedule.
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 America Reached Orbit
Sixty-three years ago, John Glenn became the first American to orbit Earth, piloting Friendship 7 through three historic orbits that transformed the Space Race