X Report 20 Jul 2025
SpaceX successfully launched 24 Starlink satellites, enhancing its constellation while continuing its leadership in satellite deployment for global internet coverage.
ATLAS CENTAUR R/B (15874)
COSPAR: 1985-055B | Alt Name: Centaur AC-64
Image
Additional Sources
Launch Details
Launch Date
June 30, 1985
Launch Site
Launch Pad
LC36B
Launch Vehicle
Atlas G Centaur
Orbital Elements
NORAD ID
15874
International Designator
1985-055B
Epoch
Fri, 03 Jul 2026 14:08:37 GMT
Apogee
Calculating...
Perigee
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Inclination
23.31°
Right Ascension
318.86°
Eccentricity
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Argument of Perigee
344.80°
Period
428.91 min
Mean Motion
3.36 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
ATLAS CENTAUR R/B
Alternative Name
Centaur AC-64
Type
Rocket Body
Status
Space Junk
Owner
LERC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 15874U 85055B 26184.58931795 .00003560 00000-0 12472-2 0 9998
2 15874 23.3099 318.8636 6458053 344.7993 2.4423 3.35732957437876
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
9.1
Diameter
3.1
Span
9.1
Dry Mass
1800
Launch Mass
2000
Shape
Cyl
Radar Cross Section
15.837
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Centaur D-1AR AC-64
Purpose
Unknown
Mission
Unknown
Manufacturer
LMASD
Life Expectancy
Unknown
Bus
Centaur
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
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