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Transit 3A



Transit 3A was a US Navy navigation satellite that was destroyed by Range Safety when the Thor Able-Star launch vehicle shut down too early. Transit 3A was launched, along with the SOLRAD 2 satellite, on a Thor-Able from Cape Canaveral.

Cutaway view of Transit 3A credit: National Museum of the U.S. Navy

Alternate Names

  • Transit3A

Facts in Brief

Launch Date: 1960-11-30
Launch Vehicle: Thor-Able
Launch Site: Cape Canaveral, United States
Mass: 91 kg

Funding Agency

  • Department of Defense-Department of the Navy (United States)


  • Navigation/Global Positioning

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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