Rosetta Radio Science RSI

Scientific goals of the Radio Science Investigations Experiment (RSI) at the comet Churyumov – Gerasimenko

‘Gravity field measurements of the comet’

  • Determination of mass and bulk density
  • Moments of inertia of the comet nucleus
  • Precise determination of the comets orbit

‘Investigation of the cometary coma’

  • Gas and dust production rates
  • dust grain abundance with sizes cm – dm
  • Mass flow onto the spacecraft

‘Investigations of the cometary nucleus (bistatic radar)’

  • Size and shape
  • Structure and roughness of the surface
  • Rotation, precession and nutation rates of the comet nucleus