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.
SL-12 R/B(1) (27776)
COSPAR: 2003-015B | Alt Name: Proton-K 410-02 Stage 3
DECAYED
Image
Additional Sources
Launch Details
Launch Date
April 24, 2003
Launch Site
Launch Pad
LC81/24
Launch Vehicle
Proton-K/DM-2
Orbital Elements
NORAD ID
27776
International Designator
2003-015B
Decay Date
4/26/2003
Basic Satellite Info
Name
SL-12 R/B(1)
Alternative Name
Proton-K 410-02 Stage 3
Type
Rocket Body
Status
Space Junk
Owner
KHRR
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
6.5
Diameter
4.2
Span
6.5
Dry Mass
4185
Launch Mass
4185
Shape
Cyl
Radar Cross Section
29.33
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
8S812
Purpose
Unknown
Mission
Unknown
Manufacturer
KHRR
Life Expectancy
Unknown
Bus
8S812
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.
X Report 26 Mar 2025
SpaceX's Starlink dish offers gigabit speeds, boosting competitiveness; NRO taps SpaceX for satellite launches, expanding spy satellite network.
Blue Origin's New Glenn Explodes During Ground Test | KeepTrack Space Brief
Blue Origin's New Glenn rocket exploded during ground testing May 28, visible from hundreds of miles across Florida. Fireball halts vehicle pending failure investigation.
Santa Maria Spaceport (Azores)
Europe's Atlantic outpost enters the launch business. How Portugal's first licensed spaceport in the Azores is preparing for suborbital flights in 2026 and positioning to receive ESA's Space Rider in 2028.
Demystifying the USSPACECOM Two-Line Element Set Format
Discover the history and significance of Two-Line Element Sets (TLEs) in satellite tracking. Dive into their components, applications, and how they are evolving to meet future space challenges.
X Report 4 Sep 2025
SpaceX conducted multiple successful launches this week, adding to its Starlink constellation and marking significant milestones in its ongoing missions.
Space Brief 20 Apr 2025
Today's highlights include advances in space tracking technology by the US Space Force, SpaceX's infrastructure expansion, and a spectacular birthday landing on Earth. Additionally, we spotlight a significant exoplanetary discovery and satellite updates.