radio occultation
radio occultation The technique of using radio waves transmitted from a spacecraft to probe the atmospheres of planets. The signals received on the Earth as the spacecraft swings behind a planet provide information about both the vertical structures of the planetary ionospheres and the atmospheric density. Monochromatic radio waves provide more accurate measurements than those obtained using stellar occultations.
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Grote Reber
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RYLE, MARTIN
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radio occultation