History
The Juno II was used for 10 satellite launches, of which six failed. It launched Pioneer 3, Pioneer 4, Explorer 7, Explorer 8, and Explorer 11 from Cape Canaveral Launch Complex 5 and Launch Complex 26B.
| Date/Time (GMT) | Serial N° | Stages | Pad | Payload | Outcome | Remarks |
|---|---|---|---|---|---|---|
| 1958-12-06, 05:44 | AM-11 | 4 | LC-5 | Pioneer 3 | Partial failure | High sub-orbital launch. Lunar probe, failed to reach Moon due to premature first stage cutoff. Radiation experiments successful. |
| 1959-03-03, 05:10 | AM-14 | 4 | LC-5 | Pioneer 4 | Successful | High sub-orbital launch. Lunar probe. |
| 1959-07-16, 17:37 | AM-16 | LC-5 | Explorer S-1 | Failure | Pitched over 5 seconds after launch, destroyed by range safety | |
| 1959-08-15, 00:31 | AM-19B | LC-26B | Beacon 2 | Failure | Premature first stage cutoff. Failed to orbit | |
| 1959-10-13, 15:30 | AM-19A | 3 | LC-5 | Explorer 7 | Successful | Reached low Earth orbit |
| 1960-03-23, 13:35 | AM-19C | 3 | LC-26B | Explorer S-46 | Failure | Third stage failed to ignite. Failed to orbit |
| 1960-11-03, 05:23 | AM-19D | 3 | LC-26B | Explorer 8 | Successful | Reached low Earth orbit |
| 1961-02-25, 00:13 | AM-19F | LC-26B | Explorer S-45 | Failure | Third stage failed to ignite. Failed to orbit | |
| 1961-04-27, 14:16 | AM-19E | LC-26B | Explorer 11 | Successful | Reached low Earth orbit | |
| 1961-05-24, 19:48 | AM-19G | LC-26B | Explorer S-45A | Failure | Second stage failed to ignite. Failed to orbit |
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