US NavyScout X-2Space Launch Complex 5, Vandenberg SFB, CA, USA
SOLRAD 4B
Launched
April 26, 1962
Image: Tim Evanson
Summary
SOLRAD 4B launched on an US Navy Scout X-2 from Space Launch Complex 5, Vandenberg SFB, CA, USA on April 26, 1962. The mission failed. It was US Navy's 18th launch, 1st this year and humanity's 160th orbital launch attempt. It was the 2nd Scout X-2 flight. The payload was bound for low Earth orbit (LEO).
- Watch
- No webcast on record.
- Vehicle
- Scout X-2 · US Navy
- Booster
- No booster details on record.
- Mission
- Astrophysics · Low Earth Orbit (LEO)
- Milestone
- 2nd Scout X-2 flightUS Navy's 18th launch1st this yearhumanity's 160th orbital launch attempt18th orbital launch attempt this year
Flight preview
About this launch
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.
Pad

Space Launch Complex 5, Vandenberg SFB, CA, USA
1st launch from Space Launch Complex 5, 1st this year · 51st from Vandenberg SFB, CA, USA
69 launches from this pad · 919 from Vandenberg SFB, CA, USA
under an hour after the previous launch from this pad
Questions
When did SOLRAD 4B launch?
SOLRAD 4B launched on April 26, 1962. The time is known to the hour, not the minute.
Where can I watch SOLRAD 4B?
No webcast is on record for this launch.
What rocket launched SOLRAD 4B?
Scout X-2, flown by US Navy. Scout X-2 spec sheet
Where did SOLRAD 4B launch from?
Space Launch Complex 5, Vandenberg SFB, CA, USA.
What orbit was SOLRAD 4B going to?
Low Earth Orbit (LEO), a astrophysics mission.
