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HBTSS (Hypersonic and Ballistic Tracking Space Sensor) is an experimental early warning mission by the to evaluate a new sensor with improved sensitivity to detect and track hypersonic missiles, which have lower heat signatures from their exhaust plumes than larger long-range ballistic missiles, making them more challenging to see with the military's existing missile tracking satellites.

Alternate Names

  • 58955

Facts in Brief

Launch Date: 2024-02-14
Launch Vehicle: Falcon 9 Full Thrust
Launch Site: Cape Canaveral, United States

Funding Agency

  • Department of Defense (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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