First Nine Satellite Structures for the SDA Tranche 2 Tracking Layer Completed by Sierra Space

Milestone Marked Three Months Ahead of Schedule

Jan 08, 2026

∙ Paid

The first nine satellite structures, Plane 1 of the 18 total satellites Sierra Space is contracted to deliver for the Space Development Agency’s (SDA) Tranche 2 Tracking Layer (T2TRK) program, have been completed three months ahead of schedule.

“As we move closer to delivering this capability, every phase of development is essential to ensuring mission s…

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