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Thor-Delta J Launch Vehicle

Thor-Delta J was a three-stage thrust-augmented improved Delta configuration with the enlarged Delta second stage and a solid third stage. Its sole flight successfully launched NASA's Radio Astronomy Explorer 1, Explorer 38, into a high Earth orbit from Vandenberg on 4 July 1968.

Thor-Delta J Launch Vehicle
NASA Marshall Space Flight Center · NASA asset; NASA’s 9141922 catalog identifies Marshall Space Flight Center (MSFC) and describes the exact Thor/Able 3 launch carrying Explorer VI, 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
Delta JThor Delta JThrust-Augmented Improved Delta JDSV-3J
Family Name
Thor-Delta J
Full Name
Thor-Delta J Launch Vehicle
Status
retired
Type
rocket
Variant Name
J

Details

Description
Thor-Delta J was a three-stage thrust-augmented improved Delta configuration with the enlarged Delta second stage and a solid third stage. Its sole flight successfully launched NASA's Radio Astronomy Explorer 1, Explorer 38, into a high Earth orbit from Vandenberg on 4 July 1968.
First Flight Year
1,968
Last Flight Year
1,968
Manufacturer
Operator
Parent Vehicle Family
Rocket Specs
Reusability
expendable
Stages Count
3

Links

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Creation Time
July 18, 2026 at 05:58:12 UTC
Updated Time
July 19, 2026 at 10:03:03 UTC

Other

Search Name
Thor-Delta J Launch Vehicle Delta J Thor Delta J Thrust-Augmented Improved Delta J DSV-3J