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HBTSS 1, 2

HBTSS 1 [L3 Harris]

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, with L3 Harris providing the payload.

Nation: USA
Type / Application: Early warning
Operator: Missile Defense Agency (MDA)
Contractors: Northrop Grumman Space Technology, L3 Harris
Orbit: 992 km 1004 km, 39.99 (#1); 993 km 1002 km, 40.00 (#2)
Satellite COSPAR Date LS Launch Vehicle Remarks
HBTSS 1 2024-028F 14.02.2024 CC SLC-40 Falcon-9 v1.2 (Block 5) with HBTSS 1, 2, T0TR 5, 6, 7, 8
HBTSS 2 2024-028A 14.02.2024 CC SLC-40 Falcon-9 v1.2 (Block 5) with HBTSS 1, 2, T0TR 5, 6, 7, 8

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