Pioneer E, a NASA heliocentric solar monitor, plus secondary TETR-3. Maiden flight of Thor Delta L from Cape Canaveral LC-17A on 27 August 1969 failed when first-stage hydraulics threw the vehicle off course; range safety destroyed it at T+383 s.
- Outcome
- Failure
- Orbit
- Helio-N/A
- Heliocentric orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 1st
- of 2 Thor Delta L flights
- Date and time
- 27 August 1969, 21:59 UTC
- Rocket
- Thor Delta L
- Builder
- McDonnell Douglas
- Launch site
- Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
- Payload
- Astrophysics
- Launches in 1969
- 86th of 125