Sundog around MARISAT GOES radome
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Sundog around MARISAT GOES radome

June 11, 2010
A sundog appears around the partially completed MARISAT GOES radome at Amundsen-Scott South Pole Station in 2004. A sundog is a parhelia caused by diffraction of ice crystals in the air. Today, the MARISAT GOES Terminal (SPMGT) satellite communications antenna platform provides approximately 11.5 hours of high-speed satellite communications a day to the world through ground stations in Maryland and Florida that support telephone, e-mail and Internet communications. Amundsen-Scott is one of three U.S. research stations in Antarctica. The National Science Foundation operates them all. (Date of Image: Dec. 3, 2004)

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