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Launch SuccessfulUnited States Air Force
Thor Agena A: Discoverer 15
Discoverer 15 was an American optical reconnaissance satellite. The orbital mission was successful but when the capsule was returned it failed to be captured and sank into the ocean.
Tuesday, 13 September 1960
Thor Agena A
Mission Data

🇺🇸United States Air ForceEst. 1947
Launch VehicleThor Agena A
Vehicle FamilyThor
Vehicle Record9 of 15 launches (60%)
Provider TypeGovernment
Agency Record972 successes / 106 failures (90%)
Success Streak68 consecutive
Mission TypeGovernment/Top Secret
Target OrbitLow Earth Orbit
Launch PadSpace Launch Complex 1E
Location🇺🇸 Vandenberg SFB, CA, USA USA
Orbital Launches This Year#22
Agency Launches This Year#16
Launches From This Pad45
Launches From This Site923
Status Note
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
About Thor Agena A
Thor-Agena was a series of orbital launch vehicles. The rockets used Thor first stages and Agena second stages. They are thus cousins of the more-famous Thor-Deltas, which founded the Delta rocket family.
Launch Site
Space Launch Complex 1E · 34.7560°N 120.6263°W
Launch data from Launch Library 2 by The Space Devs.