Thor Agena A
FailureDiscoverer 4 · United States Air Force
Launch time (NET)
Thursday, Jun 25, 1959, 22:47 UTC
Launch window
Thursday, Jun 25, 1959, 22:47 UTC – Thursday, Jun 25, 1959, 22:47 UTC
Provider
United States Air Force
Rocket
Launch pad
Space Launch Complex 1E, Vandenberg SFB, CA, USA · Open map
Status
Failure
Either the launch vehicle did not reach orbit, or the payload(s) failed to separate.
Mission
Discoverer 4
Type
Government/Top Secret
Orbit
Polar Orbit (PO)
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.
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