X Report 26 Dec 2024
Launch of 21 new Starlink satellites, featuring cell phone connectivity, and updates on NASA and SpaceX collaborative missions.
ATLAS CENTAUR R/B (13007)
COSPAR: 1981-119B | Alt Name: Centaur AC-55
Image
Additional Sources
Launch Details
Launch Date
December 15, 1981
Launch Site
Launch Pad
LC36A
Launch Vehicle
Atlas SLV-3D Centaur
Orbital Elements
NORAD ID
13007
International Designator
1981-119B
Epoch
Sat, 04 Jul 2026 04:10:22 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
23.52°
Right Ascension
95.26°
Eccentricity
Calculating...
Argument of Perigee
58.39°
Period
138.30 min
Mean Motion
10.41 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
ATLAS CENTAUR R/B
Alternative Name
Centaur AC-55
Type
Rocket Body
Status
Space Junk
Owner
LERC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 13007U 81119B 26185.17387612 .00046244 -18901-5 16919-2 0 9991
2 13007 23.5174 95.2582 2484665 58.3877 323.5474 10.41193055191311
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
17.6109
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Centaur D-1AR AC-55
Purpose
Unknown
Mission
Unknown
Manufacturer
GDC
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
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Blue Origin's New Glenn Destroyed in Hotfire Anomaly | KeepTrack Space Brief
Blue Origin lost New Glenn during static fire testing at Launch Complex 36. Vehicle sustained serious damage in anomaly. NASA Artemis timeline impacts possible.
The Day That Changed Spaceflight Forever
Thirty-nine years ago, the loss of Space Shuttle Challenger and its seven crew members forever transformed our approach to spaceflight safety and risk management
Space Brief 30 Nov 2024
Today's highlights include SpaceX's dual satellite launches, a new Space Force contract with Raytheon, and Astroscale's upcoming OneWeb mission.
Starlink Satellite Count Hits 10,191, X Report 14 Apr 2026
Starlink satellite count April 2026: 10,191 working of 10,209 in orbit. SpaceX flew its 1,000th Starlink of 2026 on April 14, adding 29 more sats.
SpaceX Launches CAS500-2 and 44 Rideshares, Space Brief 3 May 2026
SpaceX CAS500-2 launch success: Falcon 9 flew May 3 at 0700 UTC from Vandenberg with South Korea's imaging satellite and 44 rideshare payloads.
Geosynchronous Orbit (GEO)
Understanding the unique orbital sweet spot that keeps satellites perfectly positioned above Earth
Jonathan's Space Report
Jonathan's Space Report is a comprehensive resource for space launch and satellite data, compiled by astrophysicist Dr. Jonathan McDowell.