SOLRAD 4B
Scout X-2
US Navy
Mission
SOLRAD 4B
Type: Astrophysics
SOLRAD (SOLar RADiation) 4B was a solar X-ray, ultraviolet, and electronic surveillance satellite. Developed by the United States Navy’s United States Naval Research Laboratory, it was the fifth in both the SOLRAD and the GRAB (Galactic Radiation And Background) programs.
Trajectory
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Location
Space Launch Complex 5
Vandenberg SFB, CA, USA
720 rockets have launched from Vandenberg SFB, CA, USA.

Rocket
Scout X-2 – Vought
- Family: Scout
- Length: 25 m
- Diameter: 1.01 m
- Launch Mass: 16 T
- Low Earth Orbit Capacity: 76 kg
The Scout X-2 was manufactured by Vought with the first launch on 1962-03-29. Scout X-2 has 1 successful launches and 1 failed launches with a total of 2 launches. The Scout family of rockets were were American launch vehicles designed to place small satellites into orbit around the Earth. The Scout multistage rocket was the first orbital launch vehicle to be entirely composed of solid fuel stages.
Agency
US Navy – USN
- Type: Government
- Abbreviation: USN
- Founded: 1963
- Spacecraft: Vanguard 1-3 | Parker Solar Probe
- Country: USA
The Navy was competed with the Army to put the first American satellite into orbit. Their first two Vanguard missions failed, with the second being a highly publicized failure, as it exploded on the launchpad. They went on to put 3 satellites into orbit but did not beat the Army to be the first. Their work in space continues today largely on military satellites.