Other
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsp54a..03d&link_type=abstract
American Geophysical Union, Spring Meeting 2008, abstract #SP54A-03
Other
7509 Corona, 7549 Ultraviolet Emissions, 7554 X-Rays, Gamma Rays, And Neutrinos, 7594 Instruments And Techniques
Scientific paper
I have measured the stray light profile of the TRACE 171 A channel using the 2004 Venus occultation data. I find that ~35 percent of the incident EUV is scattered into a kernel with over 200" diameter. This is nearly twice the estimated energy of the known diffraction pattern from the TRACE aluminum filter support grids. Deconvolving with the fitted PSF greatly improves contrast in TRACE images and may affect scientific results derived from them. I conclude that PSF measurement and deconvolution is necessary for correct interpretation of images not just from TRACE but other spaceborne telescopes, note that the night-time and ground-based solar observing communities have already adopted stray light deconvolution as a standard procedure, and call for deconvolution as a standard part of the data reduction pipeline from future solar space missions.
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