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Landsat Missions

Download Definitive Ephemeris for Landsat 7 and Landsat 5

Definitive Ephemeris is used for geometrically correcting Landsat data, and provides improved accuracy over predicted ephemeris. More details on Definitive Ephemeris can be found at

Definitive Ephemeris files are available two days after acquisition, and can be accessed by choosing one of the options below:

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Page Last Modified: 01/16/13 01:31 pm