Three Dimensional Simulation of Wave Propagation Into the Comet 46P/Wirtanen Nucleus (ROSETTA Space Mission - CONSERT Experiment)

Details Three Dimensional Simulation of Wave Propagation Into the Comet 46P/Wirtanen Nucleus (ROSETTA Space Mission - CONSERT Experiment) Three Dimensional Simulation of Wave Propagation Into the Comet 46P/Wirtanen Nucleus (ROSETTA Space Mission - CONSERT Experiment)

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufm.p32a0545b&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #P32A-0545

Computer Science

Sound

3260 Inverse Theory, 6055 Surfaces And Interiors, 6210 Comets, 6964 Radio Wave Propagation, 6982 Tomography And Imaging

Scientific paper

We present the latest results of the simulation of CONSERT (COmet Nucleus Sounding Experiment by Radiowave Transmission). This experiment is a part of the scientific package of the ROSETTA space probe to be launched in 2003, and that is planned to reach the comet 46P/Wirtanen in 2011. The CONSERT experiment is based on the analysis of the propagation delays of 90 MHz radiowaves crossing the comet nucleus from ROSETTA orbiter to a lander on the comet surface. The final goal of the CONSERT experiment is to provide a three dimensional probing of the comet interior. For this simulation, we define a geophysical model of a comet nucleus. This model includes a plausible shape and heterogeneities distribution. We simulate the radiowave propagation using a ray tracing technique giving the complete received radio pattern in orbit with a high spatial and temporal resolutions. We show that using these measurements with the addition of surface and gravity information we are able to reconstruct correctly the interior of the comet nucleus.

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