SpaceX Hits 50 Launches, Falcon Heavy Scrub, X Report 28 Apr 2026
SpaceX hit 50 launches in 2026 on April 26. Falcon Heavy's ViaSat-3 mission, only its 12th flight, scrubbed on weather at Kennedy; new date pending.
SCOUT X-4 R/B (01739)
COSPAR: 1965-093B | Alt Name: Scout S138R Stage 4
Image
Additional Sources
Launch Details
Launch Date
November 19, 1965
Launch Site
WLPIS
Launch Pad
LA3A
Launch Vehicle
Scout X-4
Orbital Elements
NORAD ID
01739
International Designator
1965-093B
Epoch
Sat, 04 Jul 2026 04:53:31 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
59.70°
Right Ascension
156.15°
Eccentricity
Calculating...
Argument of Perigee
277.05°
Period
98.95 min
Mean Motion
14.55 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SCOUT X-4 R/B
Alternative Name
Scout S138R Stage 4
Type
Rocket Body
Status
Space Junk
Owner
LARCN
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 01739U 65093B 26185.20383802 .00000466 00000-0 14024-3 0 9991
2 01739 59.7024 156.1494 0070229 277.0463 82.2598 14.55257497172809
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
1.5
Diameter
0.5
Span
1.5
Dry Mass
33
Launch Mass
33
Shape
Cyl
Radar Cross Section
0.4742
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Altair 2 X-258E6 RH-125
Purpose
Unknown
Mission
Unknown
Manufacturer
ABL
Life Expectancy
Unknown
Bus
Altair
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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