Dr. Baker's research is in spacecraft instrumental design and calibration, space physics data analysis, and magnetospheric modeling. He has studied plasma physical and energetic particle phenomena in the magnetospheres of Jupiter and Mercury, and the plasma sheet and magnetopause boundary regions of Earth's magnetosphere. Dan Baker is experienced in the analysis of large data sets from spacecraft at geostationary orbit, and involvement in missions to the Earth's deep magnetotail and comets, in the study of solar wind-magnetospheric energy coupling, and theoretical modeling of the possible role of heavy ions in the development of magnetotail instabilities. Present interests include the use of computer systems and networks to enhance the acquisition, dissemination, and display of spacecraft data.