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. Definitive Ephemeris files are available two days after acquisition.

Return to Definitive Ephemeris information.

After searching a file click the file to view it or right-click and click save as to save the file to your local drive.

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Option 2 - Search for multiple dates (up to 10)
Option 3 - Search within a data range

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