Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725424a&link_type=abstract
American Astronomical Society, AAS Meeting #217, #254.24; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
Preparations for planning observations with JWST are already well underway at STScI. Many of the aspects of HST observation planning will carry over to JWST, but some things will be different. With HST, users are able to define arbitrary dither patterns (or use no dithering at all) in their Phase-2 submissions. This has allowed many observers to optimize their data quality for the particular science they are focused on. But, unfortunately, when the data reach the archive, the images are often less valuable to the community than they could be, either because of a lack of good dithering or because the association-based pipeline is not optimized for the particular dither pattern used. JWST will do things differently. Except in rare circumstances, such as planetary-transit observations, JWST users will be forced to dither, and they will have a limited set of dithering options to choose from. The NIRCam teams at STScI and UAz have designed a set of dither patterns that are flexible enough to meet the various anticipated science objectives, but they will also be homogeneous enough that the archive and association products will be of uniformly high quality.
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