X Report 4 Jun 2025
SpaceX continues strong momentum in June with successful satellite launches, a new service from Telstra, and updates on upcoming missions. Key developments are shaping the future of both space travel and satellite communications.
SL-8 DEB (21163)
COSPAR: 1991-009AA | Alt Name: deb S3M
Image
Additional Sources
Launch Details
Launch Date
February 12, 1991
Launch Site
PLMSC
Launch Pad
LC133/3
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
21163
International Designator
1991-009AA
Epoch
Sat, 04 Jul 2026 05:20:40 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
73.94°
Right Ascension
104.35°
Eccentricity
Calculating...
Argument of Perigee
3.24°
Period
116.98 min
Mean Motion
12.31 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SL-8 DEB
Alternative Name
deb S3M
Type
Debris
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21163U 91009AA 26185.22268916 .00000026 00000-0 34168-3 0 9993
2 21163 73.9433 104.3508 0138300 3.2409 68.0334 12.30974674586914
Source: Celestrak
Summary
Space debris, also known as space junk, encompasses all non-functional objects orbiting Earth such as defunct satellites, spent rocket stages, and fragments from collisions or disintegrations. Over time, this debris can accumulate and create an increasingly hazardous environment in orbit. Even tiny fragments, traveling at extremely high velocities, can inflict significant damage on operational satellites and spacecraft. If left unmanaged, the density of debris raises the risk of catastrophic collisions and further fragmentation, compounding the problem and threatening the safety and sustainability of space activities.
Physical Characteristics
Length
0
Diameter
0
Span
0
Dry Mass
0
Launch Mass
0
Shape
N/A
Radar Cross Section
0.0982
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.
Space Brief 2 Dec 2025
Today's brief covers China's classified Shijian-28 satellite launch, AI-designed spacecraft records, and upcoming global launch activities.
Space Force Awards $54.5M to Starfish Space for GEO Servicing | KeepTrack Space Brief
Space Force awards $54.5M to Starfish Space for GEO satellite servicing vehicle. Artemis II heads to launch pad for first crewed Moon flyby in 54 years. Crew-12 confirmed.
Who Owns the Most Satellites Orbiting Earth?
Uncover the top companies dominating the satellite industry. From SpaceX to One Web, learn who's leading in space assets. Full list inside.
Pentagon $50B Iran Supplemental Drives Space Spending Surge | KeepTrack Space Brief
Pentagon's $50B Iran supplemental request signals major investment in missile defense and ISR satellites. Amazon reshuffles LEO government leadership amid Kuiper competition.
The Kessler Syndrome
The Kessler Syndrome threatens humanity's future in space as cascading satellite collisions create exponential debris growth. With 36,000+ tracked objects and recent incidents accelerating risks, we face a critical juncture: implement solutions now or potentially lose access to low Earth orbit forever.
X Report 21 Jul 2025
SpaceX successfully launched 24 Starlink satellites into polar orbit, enhancing global coverage. Meanwhile, NASA's Crew-11 is now in quarantine ahead of their upcoming ISS mission.
SpaceX Launches AST SpaceMobile Block 2 BlueBird Satellites | KeepTrack Space Brief
SpaceX launched three Block 2 BlueBird satellites for AST SpaceMobile from Cape Canaveral. Block 2 variants are larger with enhanced capacity compared to Block 1 units already in orbit.