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Raster vertical pixel offset (ALOS AVNIR)

I am working with ALOS AVNIR-2 level 1a. There is a vertical offset/shift of each and every pixel column. It gives sort of a stripy appearance when zooming in. Does anyone have experience with this ...
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Top-of-atmosphere reflectance conversion with WorldView-2 images

I recently received a set of radiometrically-corrected dynamic range adjusted 8-byte WorldView-2 images. I want to convert to top-of-atmosphere reflectance and would like to use the FLAASH in ENVI 4.8 ...