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USA 224



USA 224 was launched from Vandenberg Air Force Base on 20 January 2011 at 21:10 UT by a Delta IV rocket. USA 224 is a National Reconnaissance Office (NRO) classified satellite. It flew in the "heavy" configuration, the highest capacity Evolved Expendable Launch Vehicle (EELV) variant and the most powerful unmanned rocket currently in service. This was the first Delta IV Heavy launched from Vandenberg and, to date, the heaviest vehicle to lift off from Vandenberg.

Alternate Names

  • 37348
  • USA224

Facts in Brief

Launch Date: 2011-01-20
Launch Vehicle: Delta IV
Launch Site: Vandenberg AFB, United States

Funding Agency

  • National Reconnaissance Office (United States)


  • Surveillance and Other Military

Additional Information

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

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