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From Wikipedia, the free encyclopedia

Delta J
Delta J.jpg
Launch of the Delta J with Explorer 38
FunctionExpendable launch system
Country of originUnited States
Launch history
StatusRetired
Launch sitesVandenberg SLC-2E
Total launches1
Success(es)1
Launch date4 July 1968

The Delta J, or Thor-Delta J was an American expendable launch system of the late 1960s. Only one was launched, with the Explorer 38 spacecraft. It was a member of the Delta family of rockets.

The Delta J was derived from the Delta E. The first stage was a Thor missile in the DSV-2C configuration, with three Castor-1 solid rocket boosters clustered around it. A Delta E was used as the second stage. The Altair third stage of the Delta E was replaced with the more powerful Star 37D SRM.

The only Delta-J to fly was launched from Vandenberg Air Force Base Space Launch Complex 2E on 4 July 1968. It successfully placed the Explorer 38 satellite into medium Earth orbit.

References

  • Wade, Mark. "Delta". Encyclopedia Astronautica. Archived from the original on 2008-07-24. Retrieved 2009-02-10.
  • Krebs, Gunter. "Thor family". Gunter's Space Page. Retrieved 2009-02-10.


This page was last edited on 1 January 2021, at 03:58
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