Space Telescope Science Institute   7.5 Choosing Exposure Times  7.6.1 Dither Strategies

7.6 Dithering with WFPC2


Dithering is the technique of displacing the telescope between observations either on integral pixel scales (to assist in removing chip blemishes such as hot pixels) or on sub-pixel scales (to improve sampling and thus produce a higher-quality final image). Here we briefly discuss observation and data analysis for dithered data.


 7.5 Choosing Exposure Times  7.6.1 Dither Strategies
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