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2026

SDA Tranche 2 Tracking Layer B

Falcon 9 Block 5Cape Canaveral SFS, FL, USA
Drawing of the Falcon 9 Block 5 for SDA Tranche 2 Tracking Layer B

Another Space Development Agency Tranche 2 Tracking Layer plane for the Proliferated Warfighter Space Architecture, sending infrared missile-warning and missile-tracking satellites to polar orbit. The 54-satellite layer is split among L3Harris, Lockheed Martin and Sierra Space, with a subset carrying fire-control-quality missile-defense sensors.

Status
Date TBD
Target orbit
PO
Polar orbit
Date and time
2026
Builder
SpaceX
Payload
Government/Top Secret