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DELTA 1 R/B (04251)
COSPAR: 1969-101B | Alt Name: Delta 74 Stage 3
Image
Additional Sources
Launch Details
Launch Date
November 22, 1969
Launch Site
Launch Pad
LC17A
Launch Vehicle
Thor Delta M
Orbital Elements
NORAD ID
04251
International Designator
1969-101B
Epoch
Sat, 18 Jul 2026 04:13:02 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
27.92°
Right Ascension
356.03°
Eccentricity
Calculating...
Argument of Perigee
84.38°
Period
309.74 min
Mean Motion
4.65 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
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Basic Satellite Info
Name
DELTA 1 R/B
Alternative Name
Delta 74 Stage 3
Type
Rocket Body
Status
Space Junk
Owner
GSFC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 04251U 69101B 26199.17571970 .00000586 00000+0 49008-3 0 9995
2 04251 27.9199 356.0329 5537051 84.3837 333.2027 04.64903279680613
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
1
Diameter
0.9
Span
1
Dry Mass
65
Launch Mass
718
Shape
Sphere + Cone
Radar Cross Section
1.804
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Star 37D S/N 017
Purpose
Unknown
Mission
Unknown
Manufacturer
THKE
Life Expectancy
Unknown
Bus
Star 37
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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