 DuPont abandoned the analytical instruments business in the late 1970s, however, CEC's mass spectrometer heritage did not end there.In the mid-1950s, CEC had split off a subsidiary, Consolidated Systems Corporation, to produce custom instruments and systems.Lawrence G. Hall carried CEC mass spectrometer know-how to CSC and led their team to put the first mass spectrometer in space on a National Aeronautics and Space Administration upper atmosphere research satellite, Explorer 17, in 1963.