X Report 22 Dec 2024
SpaceX successfully launches two rideshare missions to mid-inclination orbits, expanding their satellite deployment capabilities.
SL-4 R/B (12059)
COSPAR: 1980-090B | Alt Name: Soyuz-U 23-472 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
November 12, 1980
Launch Site
PLMSC
Launch Pad
LC41/1
Launch Vehicle
Soyuz-U
Orbital Elements
NORAD ID
12059
International Designator
1980-090B
Decay Date
11/20/1980
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
Soyuz-U 23-472 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.
X Report 8 May 2025
SpaceX launches 28 more Starlink satellites while addressing conflicts of interest and expanding home connectivity with a new router.
X Report 31 Jul 2025
Today's highlights include the ongoing Crew-11 mission launch and Starship preparations for its upcoming test flight.
X Report 25 May 2025
SpaceX addresses the cause of its recent Starship Flight 8 explosion, while successfully launching 23 more Starlink satellites as it continues to expand its constellation.
Space Brief 1 Jan 2025
Today's brief covers a record-breaking Starlink launch, FCC's allocation of additional spectrum for launches, and more. Plus, explore the intricacies of satellite Rassvet-2 No. 1 in our Satellite Spotlight.
Orion Crew Returns After Historic Lunar Mission | KeepTrack Space Brief
Artemis 2's four-person crew splashed down April 10 after first crewed lunar flyby since Apollo 17. Orion performance data critical for Artemis 3 south pole landing planning.
Space Brief 13 Feb 2025
Today's brief covers significant advancements in space satellite launches, military spending impacts on space, and notable developments from the Space Force and SpaceX.
X Report 21 Nov 2024
SpaceX's Starship gains military attention, a feather-light achievement, and a busy week for Falcon 9.