- To determine in-situ, the properties and dynamics of plasma, fields and
particles in the near-Sun heliosphere.
  
- To investigate the fine-scale structure and dynamics of the Sun's
magnetised atmosphere, using close-up, high-resolution remote sensing.
  
 - To identify the links between activity on the Sun's surface and the
resulting evolution of the corona and inner heliosphere, using solar
co-rotation passes.
  
 - To observe the polar regions of the Sun (rotation, radiance, magnetic
field, fast wind, and coronal holes) and the equatorial corona from high
latitudes.
  
   
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