X Report 22 Jun 2025
Key updates include the impending Falcon 9 launch for Transporter-14, insights on Starship's explosion, and a last-minute abort of the Starlink 10-23 mission.
SL-4 R/B (11986)
COSPAR: N/A | Alt Name: Soyuz-U 23-076 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
September 26, 1980
Launch Site
PLMSC
Launch Pad
Unknown
Launch Vehicle
Unknown
Orbital Elements
NORAD ID
11986
International Designator
N/A
Decay Date
9/29/1980
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
Soyuz-U 23-076 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.
Space Brief 9 Jun 2025
Key space events for today include potential changes in US space policy involving SpaceX, uncertainties regarding NASA's Starliner, and China's new steps in asteroid exploration.
MDA and Hanwha Partner on South Korea K-LEO Defense Network | KeepTrack Space Brief
MDA Space and Hanwha target South Korea's K-LEO defense satellite network. House passes $839B defense bill. Pentagon picks 25 vendors for $150M drone competition.
Space Brief 10 Dec 2025
Today's brief covers China's intense launch schedule, a new Arctic military constellation, Muon Space's defense innovations, and SpaceX's classified NROL-77 mission.
Space Brief 17 May 2025
Today's brief covers SES's satellite orchestration, SpaceX's defense role, cyber scorecards in DoD, and more.
Aurora 7 and the Day NASA Almost Lost Scott Carpenter
Exactly 64 years ago today, Scott Carpenter became the fourth American to orbit the Earth aboard Aurora 7. His five-hour flight produced new science, a tense reentry, and 39 minutes of silence in which the country wondered if it had just lost its astronaut.
Space Brief 23 Nov 2025
Today's highlights include a space debris incident involving China's spacecraft, development advancements for military space missions, and a notable setback for SpaceX's Starship booster.
Space Brief 26 Jul 2025
Today's brief highlights the maiden flight of Blue Origin's Blue Ring spacecraft with a new AI-driven space sensor, debates on asteroid defense responsibilities, and updates on the U.S. Space Force's missile shield leadership.