Space Brief 9 Feb 2025
Today's highlights include Rocket Lab's successful 2025 kick-off launch, SpaceX's upcoming Starlink deployment, and a significant military satellite contract competition.
SL-12 R/B(AUX MOTOR) (26104)
COSPAR: 2000-013E | Alt Name: DM2M-10L SOZ-1
DECAYED
Image
Additional Sources
Launch Details
Launch Date
March 12, 2000
Launch Site
Launch Pad
LC200/39
Launch Vehicle
Proton-K/DM-2M
Orbital Elements
NORAD ID
26104
International Designator
2000-013E
Decay Date
10/5/2000
Basic Satellite Info
Name
SL-12 R/B(AUX MOTOR)
Alternative Name
DM2M-10L SOZ-1
Type
Rocket Body
Status
Space Junk
Owner
RVSNR
Country
Russia
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
Diameter
0.6
Span
1
Dry Mass
56
Launch Mass
110
Shape
Cyl
Radar Cross Section
0.6935
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
SOZ
Purpose
Unknown
Mission
Unknown
Manufacturer
RKKE
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 27 Nov 2025
SpaceX's plans for the Transporter-15 mission are temporarily delayed as the Falcon 9 launch was scrubbed. The next launch attempt is now targeted for Friday, Nov. 28, with hopes of delivering 140 payloads into sun-synchronous orbit.
China's Shenlong Deploys Six Objects
Details on China's current Shenlong spaceplane mission and its recent deployment of six objects.
Space Force Plans to Double Active-Duty Force by 2030 | KeepTrack Space Brief
Space Force confirms plan to double active-duty Guardians by 2030, targeting faster response to satellite anomalies and adversary maneuvers in space domain awareness operations.
Space Brief 18 Sep 2024
Today's Space Brief covers Rocket Lab's IoT satellite launch, SpaceX's European Galileo satellites, FAA's fine on SpaceX, Polaris Dawn mission achievements, and more.
Space Brief 9 Nov 2024
Today's briefing covers significant developments in international rocket designs, recent astronaut health updates, and advancements in supersonic flight technology.
Two-Line Element Set (TLE)
The compact data format that describes every tracked satellite orbit in just two lines of text, and how to read it
Space Brief 20 Oct 2025
Today's Space Brief highlights Innospace's upcoming orbital launch, SpaceX's record-setting Starlink mission, China's Thousand Sails constellation, Atomic-6's new space armor, and developments in SpaceX's West Coast facilities.