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HBTSS 1, 2

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.

The two satellites were built by Northrop Grumman.

Nation: USA
Type / Application: Early warning
Operator: Missile Defense Agency (MDA)
Contractors: Northrop Grumman Space Technology
Satellite COSPAR Date LS Launch Vehicle Remarks
HBTSS 1 - 2023 CC SLC-40 Falcon-9 v1.2 (Block 5) with HBTSS 1, 2, T0TR 5, 6, 7, 8
HBTSS 2 - 2023 CC SLC-40 Falcon-9 v1.2 (Block 5) with HBTSS 1, 2, T0TR 5, 6, 7, 8

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