HR: 0800h
AN: P11B-0540    [Abstracts]
TI: Imaging of the Internal Structure of Comet 67P/Churyumov-Gerasimenko from Radiotomography CONSERT Data by Using Grid Computing Techniques (Rosetta Mission).
AU: * Barriot, J
EM: jean-pierre.barriot@upf.pf
AF: Observatoire Geodesique de Tahiti, BP 6570, Faaa, 98702, French Polynesia
AU: Kofman, W
EM: wlodek.kofman@obs.ujf-grenoble.fr
AF: Laboratoire de Planetologie de Grenoble, BP 53, Grenoble, 38041, France
AU: Herique, A
EM: alain.herique@obs.ujf-grenoble.fr
AF: Laboratoire de Planetologie de Grenoble, BP 53, Grenoble, 38041, France
AU: Benna, M
EM: mehdi.benna@nasa.gov
AF: NASA Goddard Space Flight Center, Code 699, Greenbelt, MD 20771, United States
AB: We investigate the inverse problem of imaging the internal structure of comet 67P/Churyumov-Gerasimenko from radiotomography CONSERT data (radiowave transmitted back and forth from the Rosetta orbiter to the Philae lander through the comet) by using grid computing techniques. For this purpose we use a massively parallel approach based on the discretization of the interior dielectric permittivity and of the shape of the comet, as well as the interior /exterior electric field, along suitable basis of spectral functions, in the frame of the Helmholtz equation.
DE: 0520 Data analysis: algorithms and implementation
DE: 0689 Wave propagation (2487, 3285, 4275, 4455, 6934)
DE: 3260 Inverse theory
DE: 6020 Ices
SC: Planetary Sciences [P]
MN: 2007 Fall Meeting