Chapter 11:
Techniques for Dithering, Background Measurement and
Mosaicing
In this chapter we deal with techniques for using small scale motions to remove localized detector non-uniformities, for mapping areas larger than the size of the field of view of the NICMOS cameras, and the issue of removing the thermal background of the telescope.
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Special procedures have been created to enable observers to perform these operations, and these are significantly different than those described in earlier versions of this handbook.
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