Sensor Alignment Calibration Ranges for Improved Landsat 9 L1GT Scenes

This image displays the results of a change in the geodetic accuracy of Landsat 9 Level-1GT (L1GT) scenes, which is associated with Landsat 9 sensor alignment calibration. The dotted lines show the boundary between the date range for which each new set of alignment parameters will be determined based on the average of the individual alignment parameters within that date range. These calibration updates were implemented into Level-1 processing in early 2023. 

Visit the Landsat 9 OLI and TIRS Calibration Notices webpage for more details about this update.