STScI

The MultiDrizzle Handbook

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2.3 Costs and Drawbacks of Dithering


While dithering provides substantial benefits, there are a number of trade-offs that must be understood and considered when deciding whether or not to obtain dithered data. These are described more fully later in the document but are summarized here:

For most observing programs on HST the potential drawbacks to dithering are outweighed by the scientific benefits. However, in specific instances it might be possible that the above drawbacks are deemed too severe, as in programs with very few available orbits. If you have questions about how your particular program would be affected by dithering, and you do not find the answers in this document, please feel free to get in touch with help@stsci.edu or your Contact Scientist if one has been assigned.


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