Northrop Grumman Corp., Aerospace Systems, Azusa, California, has been awarded a $7,688,550 contract option modification (P00029) to contract FA8810-15-C-0001 for Defense Support Program (DSP) on-orbit satellite and anomaly resolution support. This support provides root-cause analysis as a key component of the lifetime extension of DSP. Work will be performed in Azusa, California; Aurora, Colorado; and Colorado Springs, Colorado, and is expected to be completed by Sept. 30, 2019. Fiscal 2019 operations and maintenance funds in the amount of $7,688,550 are being obligated at the time of award. Total cumulative face value is $108,244,260. Space and Missile Systems Center, Peterson Air Force Base, Colorado, is the contracting activity. Awarded on Dec. 31, 2018.