Serco Inc., Herndon, Virginia, has been awarded an option modification of $8,850,096 (P00025) to previously awarded, firm-fixed-price contract FA2517-20-C-0003. This modification will provide operations and maintenance support for the ground-based, electro-optical deep space surveillance system. Work will be performed at various continental U.S. and outside of the continental U.S. locations. Pending all future option periods are exercised, work is expected to be complete by Oct. 31, 2027. This option modification is funded with fiscal 2024 operations and maintenance funds. This option modification brings the total cumulative face value of the contract to $39,829,661. The contracting activity is the Space Force, Space Operations Command, Space Acquisition, and Integration Office, Peterson Space Force Base, Colorado.