SpaceX Targets 600th Falcon Booster Landing on Starlink 17-22 | KeepTrack X Report
SpaceX attempts its 600th Falcon 9 booster landing during the Starlink 17-22 mission, adding 25 satellites from Vandenberg SFB.
SL-12 R/B(AUX MOTOR) (09440)
COSPAR: 1976-092D | Alt Name: DM-5L SOZ-1
DECAYED
Image
Additional Sources
Launch Details
Launch Date
September 11, 1976
Launch Site
Launch Pad
LC81/24
Launch Vehicle
Proton-K/DM
Orbital Elements
NORAD ID
09440
International Designator
1976-092D
Decay Date
7/19/1977
Explore in the Catalog
Basic Satellite Info
Name
SL-12 R/B(AUX MOTOR)
Alternative Name
DM-5L SOZ-1
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
1.1
Diameter
0.5
Span
1.1
Dry Mass
60
Launch Mass
120
Shape
Cyl
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
SOZ
Purpose
Unknown
Mission
Unknown
Manufacturer
NPOE
Life Expectancy
Unknown
Bus
SOZ
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 10 Jun 2025
Exciting advancements from SpaceX include the debut of a new Dragon capsule for Axiom Space, continued Starlink deployments, and significant shifts in U.S. rural broadband funding that could benefit Starlink.
Space Brief 4 Oct 2025
Today's Space Brief highlights major developments in satellite launches, regulatory milestones for spectrum sales, and the evolving landscape of space-related cyber conflicts.
Space Brief 1 Aug 2025
Today's Space Brief covers a crucial weather data decision by the U.S. Defense Department, an innovative power supply for aerospace systems, advancements in satellite link technology, and Norway's maritime surveillance. AI/ML tools for airspace management and concerns about defense testing capabilities are also highlighted.
X Report 11 Dec 2024
SpaceX advances with new Starship engine tests and celebrates a festive launch at Vandenberg. Jared Isaacman's NASA nomination brings excitement and scrutiny.
Vulcan GEM 63XL Passes Static Fire; February Anomaly Still Under Investigation | KeepTrack Space Brief
Northrop Grumman's GEM 63XL solid rocket booster passed static fire testing, but ULA's investigation into a February 2026 Vulcan in-flight anomaly remains open. No RTF date set.
X Report 22 Sep 2025
SpaceX successfully launched 28 Starlink satellites from Florida, marking another milestone for their ongoing deployment efforts.
SpaceX Hits 600th Falcon 9 Launch, NASA SLS Leak Tests Struggle | KeepTrack Space Brief
SpaceX reaches 600th Falcon 9 launch with Starlink 17-13 from Vandenberg. NASA SLS hydrogen leak repairs only partially successful. New book explores forces shaping space.