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ATLAS 5 CENTAUR R/B (39475)
COSPAR: 2013-072P | Alt Name: GEMSat
Image
Additional Sources
Launch Details
Launch Date
December 6, 2013
Launch Site
AFWTR
Launch Pad
SLC3E
Launch Vehicle
Atlas V 501
Orbital Elements
NORAD ID
39475
International Designator
2013-072P
Epoch
Sat, 04 Jul 2026 06:30:27 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
120.43°
Right Ascension
185.95°
Eccentricity
Calculating...
Argument of Perigee
285.70°
Period
96.11 min
Mean Motion
14.98 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
ATLAS 5 CENTAUR R/B
Alternative Name
GEMSat
Type
Rocket Body
Status
Space Junk
Owner
NROC/CALP
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 39475U 13072P 26185.27115126 .00006517 00000-0 42382-3 0 9999
2 39475 120.4275 185.9459 0171290 285.7043 72.5186 14.98225072117133
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
0.5
Diameter
0.5
Span
0.5
Dry Mass
45
Launch Mass
45
Shape
Box
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
NPSCuL-2 GEMSat
Purpose
Unknown
Mission
Unknown
Manufacturer
USNPS
Life Expectancy
Unknown
Bus
NPSCul
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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