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SHARAD
SHARAD (Mars SHAllow RADar sounder) is a subsurface sounding radar embarked on the Mars Reconnaissance Orbiter probe. It complements the MARSIS instrument on Mars Express,〔R. Orosei ''et al.,'' ("Science results from the MARSIS and SHARAD subsurface sounding radars on Mars and their relevance to radar sounding of icy moons in the Jovian system" ), EPSC2010-726, European Planetary Science Congress 2010, Vol. 5 (accessed Nov. 17 2014)〕 providing lower penetration capabilities (some hundred meters) but much finer resolution (15 metres - untapered - in free space).
SHARAD is developed under the responsibility of the Italian Space Agency (ASI, Agenzia Spaziale Italiana), and provided to JPL for use on board the Mars Reconnaissance Orbiter Spacecraft in the frame of a NASA/ASI agreement which foresees exploitation of the data by a joint Italian/US team. The INFOCOM dept. of the University of Sapienza University of Rome is rensponsible for the whole mission, while Alcatel Alenia Space Italia (formerly Alenia Spazio) designed and built the instrument.
SHARAD operations are managed by INFOCOM from the SHARAD Operation Centre (SHOC), located within the Alcatel Alenia Space facilities in the suburbs of Rome.
== Science objectives ==
SHARAD is intended to map the first kilometer below the Mars surface, providing images of subsurface scattering layers with high vertical resolution (15 m), with the intent to locate water/ice/ deposits and to map the vertical structure of the upper subsurface layers.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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