landsat

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English - Turkish
(Askeri) kara uydusu (land satellite)
English - English
Any of several satellites used to gather data about the Earth's surface resources
officially Earth Resources Technology Satellites Any of a series of unmanned U.S. scientific satellites. The first three were launched in 1972, 1975, and 1978. They were designed mainly to collect information about Earth's natural resources. They were also equipped to monitor atmospheric and oceanic conditions and to detect variations in pollution levels and other ecological changes. Three more Landsat satellites were launched successfully, in 1982, 1984, and 1999; radio communication with Landsat 6 was lost immediately after its launch in 1993
Any of several satellites used to gather data about the Earths surface resources
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