Orbital Sciences Corp. of Dulles, Va., unseated Northrop Grumman Technical Services of Herndon, Va., to win a $310 million contract to manage NASAโ€™s sounding rocket program through 2015.

Under the indefinite-delivery, indefinite-quantity contract announced July 28, Orbital Sciencesโ€™ Technical Services Division in Greenbelt, Md., will coordinate and implement NASAโ€™s overall sounding rocket program and provide the services and supplies necessary to complete missions and projects. The NASA Sounding Rocket Operations Contract carries a maximum total value of $310 million. Orbital said in a July 30 press release that the current expected value of the award is at least $125 million.

The majority of the work will be done at NASAโ€™s Wallops Flight Facility on Virginiaโ€™s eastern shore.