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United States Air ForceThor Agena ASpace Launch Complex 1E, Vandenberg SFB, CA, USA

Discoverer 4

Launched

June 25, 1959

Launch Failure

Image: USAF

Summary

Discoverer 4 launched on an United States Air Force Thor Agena A from Space Launch Complex 1E, Vandenberg SFB, CA, USA on June 25, 1959. The mission failed. It was United States Air Force's 4th launch, 4th this year and humanity's 41st orbital launch attempt. It was the 4th Thor Agena A flight. The payload was bound for Polar Orbit (PO).

Watch
No webcast on record.
Vehicle
Thor Agena A · United States Air Force
Booster
No booster details on record.
Mission
Government/Top Secret · Polar Orbit (PO)
Milestone
4th Thor Agena A flightUnited States Air Force's 4th launch4th this yearhumanity's 41st orbital launch attempt10th orbital launch attempt this year

Flight preview

About this launch

Discoverer 4 was the fourth in a series of reconnaissance satellites, however, it failed to reach orbit when the Agena engine underperformed and failed to place the capsule into orbit.

Pad

Map of Space Launch Complex 1E

Space Launch Complex 1E, Vandenberg SFB, CA, USA

1st launch from Space Launch Complex 1E, 1st this year · 4th from Vandenberg SFB, CA, USA

45 launches from this pad · 919 from Vandenberg SFB, CA, USA

under an hour after the previous launch from this pad

Questions

When did Discoverer 4 launch?

Discoverer 4 launched on June 25, 1959. The time is known to the hour, not the minute.

Where can I watch Discoverer 4?

No webcast is on record for this launch.

What rocket launched Discoverer 4?

Thor Agena A, flown by United States Air Force. Thor Agena A spec sheet

Where did Discoverer 4 launch from?

Space Launch Complex 1E, Vandenberg SFB, CA, USA.

What orbit was Discoverer 4 going to?

Polar Orbit (PO), a government/top secret mission.