• Ph.D., Space Plasma Physics, University of Tokyo, 2006
  • M.S. Space Science and Physics, University of Tokyo, 2003
  • B.S. Geophysics, University of Tokyo, 2001


Phone: 210-522-2956

Professional Links


  • IMAP
  • Solar Orbiter
  • IBEX

Research Areas:

Dr. Ogasawara is a principal Scientist at the Southwest Research Institute. His areas of expertise include: (1) Nonthermal distribution functions of space plasma, (2) Solar wind suprathermal particles, (3) Planetary neutrons and γ-rays, (4) Interaction of solar wind and planetary magnetosphere, (5) Magnetosphere-Ionosphere coupling through in-situ particle measurement, (6) Plasma and dust interaction in the heliosheath, (7) Solid material and charged particle interaction, (8) Development of particle detector technologies (neutral particles, neutron, plasma and energetic particles), (9) Development of charged particle electro-optics and electrostatic analyzers, (10) Development of time-of-flight mass spectrometers, (11) Development of magnet-based charged particle filters and mass spectrometers, and (12) Development of analog electronics and related technologies.

  • Deputy lead, Compact Dual Ion Composition Experiment, Interstellar Mapping and Acceleration Probe (IMAP)
  • Science Co-I, Heavy Ion Sensor, Solar Orbiter
  • Co-I & electron instrument lead, Ground-to-Rocket Electrodynamics-Electrons Correlative Experiment (GREECE) (36.287 Samara) rocket mission, to launched in March 2014.
  • Co-I, A Compact Radiation Belt Explorer (CeRES), launched in 2017.
  • Co-I, Science operation center lead, The Cubesat mission to study Solar Particles (CuSP), to be launched in 2021.
  • Science team member, Interstellar Boundary EXplorer (IBEX)