Raytheon Co., Aurora, Colorado, has been awarded a $196,712,028 undefinitized change order modification (P00439) to previously awarded contract FA8807-10-C-0001 for the Global Positioning System Next Generation Operational Control System. The modification brings the total cumulative face value of the contract to $4,486,044,806. Work will be performed in Aurora, Colorado, and is expected to be completed by Nov. 28, 2025. Fiscal 2025 research, development, test and evaluation funds in the amount of $21,000,000 are being obligated at the time of award. The Space Systems Command, Los Angeles Air Force Base, California, is the contracting activity.