Evidence for Global Radar Speckle Pattern Displacement to Measure Mercury's Obliquity and Librations

Details Evidence for Global Radar Speckle Pattern Displacement to Measure Mercury's Obliquity and Librations Evidence for Global Radar Speckle Pattern Displacement to Measure Mercury's Obliquity and Librations

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002assl..278...35h&link_type=abstract

Solar System Remote Sensing, p. 35

Astronomy and Astrophysics

Astronomy

Mercury (Planet), Mercury Surface, Librational Motion, Radar Astronomy, Planetary Rotation, Speckle Patterns, Backscattering, Coherent Light, Speckle Interferometry

Scientific paper

Let us illuminate Mercury by a monochromatic radiowave at wavelength lambda = 3.5 cm. Due to coherent illumination and rough surface of Mercury the backscattering pattern is speckled like those well known and easy observable in laser optics experiments. Further processing of data from the Goldstone - Green Bank experiment may lead to the first determination of Mercury's obliquity and librations.

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