X Report 30 Jun 2025
SpaceX is exploring alternative options for static fire tests amid infrastructure setbacks, emphasizing their adaptability in operations.
SL-12 R/B(1) (08515)
COSPAR: 1975-123C | Alt Name: Proton-K 288-01 Stage 3
DECAYED
Image
Additional Sources
Launch Details
Launch Date
December 22, 1975
Launch Site
Launch Pad
LC81/24
Launch Vehicle
Proton-K/DM
Orbital Elements
NORAD ID
08515
International Designator
1975-123C
Decay Date
12/25/1975
Explore in the Catalog
Basic Satellite Info
Name
SL-12 R/B(1)
Alternative Name
Proton-K 288-01 Stage 3
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
6.5
Diameter
4.2
Span
6.5
Dry Mass
4185
Launch Mass
4185
Shape
Cyl
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
8S812
Purpose
Unknown
Mission
Unknown
Manufacturer
ZIKH
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.
Understanding Space Debris
From shattered satellites to exploded rocket stages, space debris poses a growing risk to satellites, space stations, and astronauts. Here's a deep dive into what causes space debris, notable generating events, and what we're doing about it.
X Report 6 Mar 2025
Starship Flight 8 set for launch, new milestones in the defense sector, and launch updates dominate today's news.
X Report 19 Feb 2025
SpaceX achieves a new milestone with a Falcon 9 landing near The Bahamas, closely following Rocket Lab's successful satellite launch.
Space Brief 14 Apr 2025
Today's highlights include SpaceX's record-breaking Falcon launches, urgent warnings about orbital collisions, and a doubleheader launch featuring spy and Starlink satellites.
Version 10.0.0 Release Notes
The latest update introduces 3D satellite FOV cones, advanced sensor capabilities, and enhanced timelines, improving the way users interact with satellite data.
Space Brief 9 Jul 2025
Today's brief covers the U.S. Space Force's new international strategy, Northrop Grumman's Golden Dome project, and ULA's Vulcan launches, alongside military budget priorities.
Space Situational Awareness (SSA)
How our ability to track and predict objects in orbit has become the foundation of space safety in an increasingly crowded cosmic neighborhood