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 |
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| 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 |
