Computer Science
Scientific paper
Jul 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008hst..prop11921d&link_type=abstract
HST Proposal ID #11921. Cycle 17
Computer Science
Scientific paper
The IR PSF wings will be evaluated at 5 field points {near the field center and corners} in two filters {F098M and F160W} to check for image stability. Full frame images of a moderately bright, isolated star will be obtained at each field position with a series of increasing exposure times designed to permit construction of a very high SNR PSF with dynamic range sufficient to evaluate the wing intensity to >5 arcsec radius. The images will also permit examination of potential straylight effects, electronic cross-talk and image persistence. This is a repeat of SMOV activity WFC3-26 {program 11439.} The results of the two programs will be compared. The data will be analyzed using the code and techniques described in ISR WFC3 2008-41 {Hartig}. Profiles of encircled energy will be compared to those obtained from program 11439.;
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