Computer Science
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7731e.138d&link_type=abstract
Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave. Edited by Oschmann, Jacobus M., Jr.; Clampin
Computer Science
Scientific paper
The Rosetta cometary rendezvous mission, one of ESA's cornerstone missions, was launched in 2004 and will be inserted in orbit around comet 67P/Churyumov-Gerasimenko in 2014. One of its instruments, the Osiris Narrow Angle Camera (NAC), will take high-resolution images of the comet and map its nucleus as well as the jets of gas and dust emanating from localized areas. This is quite challenging as the contrast between the radiance of these jets and that of the nucleus is expected to be of the order of 1/1000. A major limitation comes from the presence of multiple ghosts which results from the presence of two filters and a protective window in front of the CCD detector. Rigorous knowledge of these instrumental ghost images is therefore required. We present analytical models of the structure and intensity of these ghosts, compare them with pre and post-launch observations, and describe image analysis tools developed to handle them.
Dohlen Kjetil
Jorda Laurent
Lamy Philippe
Origne Alain
Toth Imre
No associations
LandOfFree
Analytic and experimental determination of ghosts in the Rosetta Narrow-Angle Camera and their impact on imaging performance does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analytic and experimental determination of ghosts in the Rosetta Narrow-Angle Camera and their impact on imaging performance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analytic and experimental determination of ghosts in the Rosetta Narrow-Angle Camera and their impact on imaging performance will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1374468