Mars Global Surveyor Bistatic Radar Probing of the MPL/DS2 Target Area

Details Mars Global Surveyor Bistatic Radar Probing of the MPL/DS2 Target Area Mars Global Surveyor Bistatic Radar Probing of the MPL/DS2 Target Area

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icar..152...70s&link_type=abstract

Icarus, Volume 152, Issue 1, pp. 70-74 (2001).

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Scientific paper

Mars Global Surveyor bistatic radar was used to probe the Mars Polar Lander and Deep Space 2 target areas (76°S, 195°W) in May 2000. The behavior of quasi-specular echoes at wavelength λ=3.6 cm indicates that the top few centimeters of regolith are similar in their reflecting properties everywhere along a track of approximately 1000 km which crosses the MPL/DS2 area. Our provisional estimate of surface dielectric constant ɛ~2.25 is consistent with loose soil, moderately packed H2O snow, solid CO2, or a mixture of at least two. But other data rule out both H2O and CO2 near the surface in late southern summer (Ls=351°), leaving dry soil with density ~1.4 g/cm3 as the most likely material.

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