The new satellites for missile warning, tracking and targeting are being developed under an "accelerated" schedule to meet the Pentagon's 2028 plans for demonstrating its Golden Dome missile defense shield.

L3Harris, Sierra Space to build 36 satellites to expand U.S. missile-tracking network L3Harris, Sierra Space to build 36 satellites to expand U.S. missile-tracking network

US Space Force Selects L3Harris to Provide Advanced Tracking Satellites for America’s Missile Defense