ROSAT Guest Observer Facility

What gives the exposure map the checkerboard appearance?


The exposure map has been binned to 512x512. The checkerboard appearance probably is due to the beating between the wire grids (spaced about every 11 pixels in both dimensions and rotated by 45 degrees to the exposure map and the images) and the map sampling (about every 4 pixels in both dimensions).

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This file was last modified on Friday, 27-Jul-2001 14:59:28 EDT

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