Land·sat (l nd st )n. Any of various satellites operated by U.S. government organizations, used to gather data for constructing images of the Earth's surface. [land + sat(ellite).] |
| Landsat (lndst) Any of various satellites used to gather data for images of the Earth's land surface and coastal regions. These satellites are equipped with sensors that respond to Earth-reflected sunlight and infrared radiation. The first Landsat satellite was launched in 1972. Currently, the seventh satellite (Landsat 7) is orbiting Earth. |
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