Explorer S-46, a NASA radiation-belt science satellite, failed to reach orbit on a Juno II from Cape Canaveral when one second-stage motor failed to ignite, causing imbalanced thrust that sent the payload into the Atlantic.
- Outcome
- Failure
- Orbit
- MEO
- Medium Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 6th
- of 10 Juno II flights