Space Brief 19 Jun 2025
Discover key developments in space defense and military operations, including new leadership for Space Force's 'Golden Dome,' SpaceX's contract for a military SATCOM network, and increased Israeli-Iranian missile activity.
SL-12 R/B(AUX MOTOR) (12784)
COSPAR: 1978-118D | Alt Name: DM-17L SOZ-1
DECAYED
Image
Additional Sources
Launch Details
Launch Date
December 19, 1978
Launch Site
Launch Pad
LC200/40
Launch Vehicle
Proton-K/DM
Orbital Elements
NORAD ID
12784
International Designator
1978-118D
Decay Date
8/1/1979
Basic Satellite Info
Name
SL-12 R/B(AUX MOTOR)
Alternative Name
DM-17L 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
4.22
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.
Space Brief 1 May 2025
Today's space brief covers NASA's shift to private companies for astronaut rescue, EU's potential collaboration with SES for satellite services, and notable military contract allocations. Plus, a satellite spotlight on LEMUR-2-KADI.
SpaceX Wins $57M Golden Dome Crosslink Deal, X Report 24 Apr 2026
SpaceX military contract: $57M to demo Link-182 waveform satellite crosslinks for Golden Dome missile defense. FCC denies its spectrum bid.
New Glenn Static Fire Anomaly Grounds Amazon Launch | KeepTrack Space Brief
Blue Origin's New Glenn suffered catastrophic anomaly during static fire test at LC-36. Amazon LEO satellites pulled; NASA lunar missions now in question.
Space Brief 25 May 2025
Today's brief covers crucial developments in satellite technology and operations, including new Starlink launches, groundbreaking satellite data on flood waves, and pivotal changes in South African telecom policy driven by Starlink.
X Report 9 Aug 2025
SpaceX's Crew-10 astronauts are set to return to Earth after a five-month mission, while the company prepares for the launch of 24 new Starlink satellites from Vandenberg Space Force Base.
Senate Passes $839B Defense Bill, L3Harris Doubles Down on Space Business | KeepTrack Space Brief
Senate clears $839B defense spending bill ensuring Pentagon space domain funding. L3Harris reaffirms space sector commitment amid Golden Dome expansion. York Space raises $629M in public offering.
X Report 3 Jul 2025
In a landmark achievement, SpaceX celebrated its 500th Falcon 9 launch by deploying 27 Starlink satellites while simultaneously advancing its reuse strategy with record-breaking milestones.