BETA SAÚDE
Landsat 1
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Landsat 1 (LS-1), formerly named Earth Resources Technology Satellite ERTS-A or ERTS-1, was the first satellite of the United States' Landsat program. It was a modified version of the Nimbus 4 meteorological satellite and was launched on July 23, 1972, by a Delta 0900 rocket from Vandenberg Air Force Base in California.