Artist's impression of Topex/Poseidon satellite

Artist's impression of Topex/Poseidon satellite

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Credit: NASA/SCIENCE PHOTO LIBRARY

Caption: Artist's impression of the Topex/Poseidon oceanography research satellite, which was launched on 10 August 1992 by an Ariane 42P rocket into a 1331-km high orbit. This satellite has resulted from the merging of two programmes, NASA's Topex (The Ocean Topography Experiment) and France's Poseidon. The satellite's primary instruments are the US C/Ku-band radar altimeter and a similar French instrument operating only in the Ku-band. Both instruments share the same dish antenna, and may determine sea height to an accuracy of about 6 cm. A microwave radiometer is used to correct altimeter data for the effects of tropospheric water vapour.

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Keywords: ocean research, oceanography, poseidon satellite, research, satellite, science, scientific, topex satellite, topex/poseidon, topex/poseidon satellite

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