Science Applications International Corp., Reston, Virginia, was awarded a $574,527,416 cost-plus-incentive-fee ground based radar maintenance and sustainment services support task order. This contract provides for continued sustainment and modification of the ground-based radar sensor systems. Work will be performed in Colorado Springs, Colorado; and other locations, and is expected to be completed by March 24, 2030. This contract was a competitive acquisition and four offers were received. Fiscal 2023 operations and maintenance funds in the amount of $43,836,709 are being obligated at the time of award. Space Systems Command Acquisitions, Peterson Space Force Base, Colorado, is the contracting activity (TO FA8723-23-F-9010).