Juno I Satellite Launch Vehicle
Juno I was the four-stage satellite-launch adaptation of Jupiter-C developed by the Army Ballistic Missile Agency with Jet Propulsion Laboratory upper stages. It added a live single Sergeant-derived fourth stage to the three-stage reentry-test vehicle. Six orbital attempts in 1958 launched Explorers 1 through 5 and Beacon 1; three succeeded, including Explorer 1, the first U.S. satellite.
Identity
- Aliases
- Juno 1Juno-IModified Jupiter-C satellite launcher
- Family Name
- Juno I
- Full Name
- Juno I Satellite Launch Vehicle
- Reusability
- expendable
- Slug
- juno-i-satellite-launch-vehicle
- Status
- retired
- Type
- rocket
Details
- Description
- Juno I was the four-stage satellite-launch adaptation of Jupiter-C developed by the Army Ballistic Missile Agency with Jet Propulsion Laboratory upper stages. It added a live single Sergeant-derived fourth stage to the three-stage reentry-test vehicle. Six orbital attempts in 1958 launched Explorers 1 through 5 and Beacon 1; three succeeded, including Explorer 1, the first U.S. satellite.
- Diameter M
- 1.8
- Engines
- Count
- 1
- Name
- Rocketdyne A-7
- Placement
- core
- Count
- 11
- Name
- Scaled-down Sergeant
- Placement
- upper
- Count
- 3
- Name
- Scaled-down Sergeant
- Placement
- upper
- Count
- 1
- Name
- Scaled-down Sergeant
- Placement
- upper
- First Flight Year
- 1,958
- Height M
- 21
- Last Flight Year
- 1,958
- Liftoff Mass Kg
- 30,000
- Parent Vehicle Family Id
- nd7s8s7vyytg72b0q1gwdasw418aerqp
- Payload Capacity Kg
- Leo
- 18
- Stages Count
- 4
Links
Assets & Meta
- Creation Time
- 7/13/2026, 12:43:59 PM
- Updated Time
- 7/13/2026, 12:43:59 PM