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INMARSAT 2-F2 R/B(PAM-D) (21151)
COSPAR: 1991-018C | Alt Name: Delta 203 Stage 3
Image
Additional Sources
Launch Details
Launch Date
March 8, 1991
Launch Site
Launch Pad
LC17B
Launch Vehicle
Delta 6925
Orbital Elements
NORAD ID
21151
International Designator
1991-018C
Epoch
Sat, 04 Jul 2026 06:25:30 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
23.18°
Right Ascension
228.37°
Eccentricity
Calculating...
Argument of Perigee
126.80°
Period
188.39 min
Mean Motion
7.64 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
INMARSAT 2-F2 R/B(PAM-D)
Alternative Name
Delta 203 Stage 3
Type
Rocket Body
Status
Space Junk
Owner
MDAC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21151U 91018C 26185.26771851 .00015522 00000-0 10166-2 0 9999
2 21151 23.1825 228.3726 3884040 126.7953 275.5243 7.64385164740501
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
2.3
Diameter
1.1
Span
2.3
Dry Mass
132
Launch Mass
2141
Shape
Sphere + Cone
Radar Cross Section
2.9002
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Star 48B S/N 10066-18
Purpose
Unknown
Mission
Unknown
Manufacturer
THKE
Life Expectancy
Unknown
Bus
Star 48
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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