Revealing the properties of Chuyurmov-Gerasimenkos shallow sub-surface through CONSERTs measurements at grazing anglesReport as inadecuate




Revealing the properties of Chuyurmov-Gerasimenkos shallow sub-surface through CONSERTs measurements at grazing angles - Download this document for free, or read online. Document in PDF available to download.

* Corresponding author 1 IMPEC - LATMOS LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales 2 TUD - Technische Universität Dresden 3 IPAG - Institut de Planétologie et d-Astrophysique de Grenoble

Abstract : The aim of the Comet Nucleus Sounding Experiment by Radiowave Transmission CONSERT is the characterization of the inner structure and electrical properties of the Chuyurmov-Gerasimenko-s nucleus. The instrument will sound the comet-s nucleus between the lander Philae at the comet-s surface and the Rosetta main spacecraft. A coarse three-dimensional model of the complex dielectric permittivity inside the nucleus will be reconstructed from the whole set of data obtained during the first science phase 3. The work presented here show how a limited set of data acquired at grazing angles during a single low altitude fly-by can be used to characterize the shallow sub-surface of the nucleus. The study is based on simulated data obtained by two different electromagnetic models: the accurate pseudo spectral time-domain method and a much faster ray-based approximation taking into account material and path-loss.





Author: Valérie Ciarletti - C. Statz - D. Plettemeier - S. Hegler - W. Kofman - A. Herique -

Source: https://hal.archives-ouvertes.fr/



DOWNLOAD PDF




Related documents