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Pioneer E

Rocket launch

by USA

Launch time27 Aug 196921:59 UTC

failure

Orbit: Heliocentric

Serial number: Delta 73

Defective valve in Stage 1 caused a hydraulic fluid leak and loss of engine gimbaling at T+220 seconds, making it impossible for the second stage to reach orbit. RSO T+480 seconds.

Rocket DeltaL

launched from Cape Canaveral, LC-17AUSA

Payloads

NamePurposeMassComment
Pioneer EInterplanetary space research probe--
TTS-3Technology demonstration satellite--