HR: 0800h
AN: P41B-13    [Abstracts]
TI: Measurement of the Dielectric Properties Performed by HASI-PWA at the Huygens Landing Site: Implications for Titan Surface Characterization
AU: * Simoes, F
EM: fernando.simoes@cetp.ipsl.fr
AF: CETP, 4, Avenue de Neptune, Saint Maur, 94107, France
AU: Grard, R
EM: rgrard@rssd.esa.int
AF: ESA-ESTEC, European Space Agency, Keplerlaan 1, Noordwijk, 2200 AG, Netherlands
AU: Hamelin, M
EM: michel.hamelin@cetp.ipsl.fr
AF: CETP, 4, Avenue de Neptune, Saint Maur, 94107, France
AU: Lopez-Moreno, J
EM: lopez@iaa.es
AF: IAA-CSIC, Camino Bajo de Huetor, 50, Granada, 18008, Spain
AU: Schwingenschuh, K
EM: konrad.schwingenschuh@oeaw.ac.at
AF: IWF, Schmiedlstrasse 6, Graz, 8042, Austria
AU: Beghin, C
EM: cbeghin@cnrs-orleans.fr
AF: LPCE-CNRS, 3A, Avenue de la Recherche Scientifique,cedex 2, Orleans, 45071, France
AU: Berthelier, J
EM: jjb@cetp.ipsl.fr
AF: CETP, 4, Avenue de Neptune, Saint Maur, 94107, France
AU: Brown, V
EM: brown@iaa.es
AF: IAA-CSIC, Camino Bajo de Huetor, 50, Granada, 18008, Spain
AU: Chabassiere, M
EM: michel.chabassiere@cnrs-orleans.fr
AF: LPCE-CNRS, 3A, Avenue de la Recherche Scientifique,cedex 2, Orleans, 45071, France
AU: Falkner, P
EM: peter.falkner@esa.int
AF: ESA-ESTEC, European Space Agency, Keplerlaan 1, Noordwijk, 2200 AG, Netherlands
AU: Ferri, F
EM: francesca.ferri@unipd.it
AF: CISAS "G. Colombo", Universita di Padova, Via Venezia 15, Padova, 35131, Italy
AU: Fulchignoni, M
EM: marcello.fulchignoni@obspm.fr
AF: LESIA, Observatoire de Paris, 5, Place Janssen, Meudon, 92195, France
AU: Jernej, I
EM: irmgard.jernej@oeaw.ac.at
AF: IWF, Schmiedlstrasse 6, Graz, 8042, Austria
AU: Molina-Cuberos, G
EM: gregomc@um.es
AF: Applied Electromagnetic Group, Department of Physics, University of Murcia, Murcia, 30100, Spain
AU: Trautner, R
EM: roland.trauner@esa.int
AF: ESA-ESTEC, European Space Agency, Keplerlaan 1, Noordwijk, 2200 AG, Netherlands
AU: Tokano, T
EM: tokano@geo.Uni-koeln.de
AF: Institut fur Geophysik und Meteorologie, Universitat zu Koln, Albertus-Magnus-Platz, Koln, 50923, Germany
AB: The safe landing of the Huygens Probe on Titan allowed the measurement of the dielectric properties of the surface. The Permittivity, Waves, and Altimetry (PWA) analyser, a subunit of the Huygens Atmospheric Structure Instrument (HASI), included a mutual impedance probe mounted on two booms that measured the dielectric properties of the surface during approximately 30 min. The array configuration on the booms, together with the coupling between the soil and the atmosphere, requires a careful evaluation of the attitude of the Huygens Probe on the surface for assessing the dielectric properties with good accuracy. In this paper we present the calibrated data set of PWA, including reference values to evaluate the permittivity and the conductivity of the surface. The dielectric properties contribute to the characterization of the medium and provide unique constraints of soil composition. Furthermore, surface measurements made with PWA at the landing site are useful for comparison with Cassini radar data, which evaluates surface properties at much larger scale.
DE: 0604 Antenna arrays
DE: 5109 Magnetic and electrical properties (0925)
DE: 6281 Titan
SC: Planetary Sciences [P]
MN: 2007 Joint Assembly