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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.

Juno I Satellite Launch Vehicle
NASA Marshall Space Flight Center · NASA asset; NASA’s 9801800 catalog identifies Marshall Space Flight Center (MSFC) and describes the exact Juno I/Jupiter-C launch vehicle shortly before the Explorer I launch, with no third-party photographer or copyright holder listed. NASA’s current Images and Media Usage Guidelines generally permit factual or informational/editorial use with NASA attribution and without implying NASA endorsement. Commercial, promotional, merchandise, logo/insignia, or other protected-rights uses may require separate clearance; verify any third-party rights if later identified. · Source
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Identity

Aliases
Juno 1Juno-IModified Jupiter-C satellite launcher
Family Name
Juno I
Full Name
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.
Dimensions
Diameter M
1.8
Height M
21
First Flight Year
1,958
Last Flight Year
1,958
Operator
Parent Vehicle Family
Propulsion Configurations
  • Entries
    • Nested value
    • Nested value
    • Nested value
    • Nested value
Rocket Specs
Liftoff Mass Kg
30,000
Payload Capacity Kg
Leo
18
Reusability
expendable
Stages Count
4

Links

Assets & Meta

Creation Time
July 13, 2026 at 12:43:59 UTC
Updated Time
July 29, 2026 at 15:38:39 UTC

Other

Search Name
Juno I Satellite Launch Vehicle Juno 1 Juno-I Modified Jupiter-C satellite launcher