rtokens: The system , which would use satellite technology , is scheduled to enter service in 2000 .
pos: DT NN VBZ JJ IN DT NN IN NN VBG NN NNS IN NNP CC NNP NNP .
tokens: The system is responsible for the control of aircraft flying transatlantic routes from Europe and North America .
ltokens: The contract involved upgrading the flight data processing system at the Oceanic Control Centre in Prestwick in south west Scotland for National Air Traffic Services Ltd ( NATS ) , subsidiary of the Civil Aviation Authority .