The global importance of GPS to military operations and everyday civilian life is well documented, as is the significant vulnerability posed by this reliance. Not just in the articles and opinions on SpaceNews, but even in congressional testimony. Specifically, the advanced and widespread RF jamming around Ukraine has spotlighted the expected impact in future conflicts.
While there has been active work to find alternative Position, Navigation and Timing (altPNT) solutions for terrestrial operations, including the questionable investment in a few new GPS satellites (R-GPS), there is little interest in protecting our on-orbit assets. Yet denied or disrupted PNT can significantly affect operations for key programs like MilSatCom or Missile Warning.
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