Space Brief 27 Aug 2025
Today's key space events include SpaceX's launch of the secretive X-37B military drone, XTAR's U.S. defense market strategy, and China's space station AI upgrade.
SL-4 R/B (100058)
COSPAR: 2026-162B | Alt Name: N/A
Image
Additional Sources
Launch Details
Launch Date
July 14, 2026
Launch Site
TTMTR
Launch Pad
Unknown
Launch Vehicle
Unknown
Orbital Elements
NORAD ID
100058
International Designator
2026-162B
Epoch
Fri, 17 Jul 2026 07:21:44 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
51.65°
Right Ascension
149.44°
Eccentricity
Calculating...
Argument of Perigee
88.67°
Period
87.84 min
Mean Motion
16.39 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Explore in the Catalog
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
N/A
Type
Rocket Body
Status
Space Junk
Owner
Unknown
Country
USSR/Russia
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 A0058U 26162B 26198.30676475 .05230344 12382-4 41169-3 0 9999
2 A0058 51.6484 149.4423 0006860 88.6654 271.5159 16.39257397 391
Source: Celestrak
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
N/A
Diameter
N/A
Span
N/A
Dry Mass
N/A
Launch Mass
N/A
Shape
N/A
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Unknown
Purpose
Unknown
Mission
Unknown
Manufacturer
Unknown
Life Expectancy
Unknown
Bus
Unknown
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
X Report 16 Feb 2025
SpaceX achieves a new milestone with the Falcon 9 and Starlink reshapes satellite connectivity landscape.
EUTELSAT 172B
Europe's first high-power all-electric telecom satellite doesn't just sit above the Pacific - it got there on robotic arms and plasma thrusters, broke records doing it, and now keeps your airplane Wi-Fi running between LA and Tokyo.
Space Brief 22 Nov 2024
Today's key topics include delays in Vulcan's national security launches, a significant network upgrade contract for the Space Force, and military interest in SpaceX's Starship.
X Report 23 May 2025
The FAA has approved Starship Flight 9, paving the way for an upcoming test launch, while SpaceX's Dragon spacecraft is set to undock from the ISS after weather delays.
The Pentagon's Mystery Spaceplane Takes Off
On April 22, 2010, an Atlas V lifted off from Cape Canaveral carrying a reusable robotic spaceplane so secret that the Air Force would not even confirm its mission duration. It came back 224 days later, lighter, quieter, and more operational than anyone outside Washington had expected. Fifteen years later, the X-37B is still flying, and the military still will not say what it does.
X Report 13 Dec 2025
SpaceX continues making strides in satellite deployments and Starship preparations while managing challenges in space traffic.
X Report 12 Dec 2024
SpaceX progresses with Starship developments and sets sights on NASA's upcoming 3D sky-mapping satellite launch.