Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011dda....42.1005m&link_type=abstract
American Astronomical Society, DDA meeting #42, #10.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
Star catalog errors (currently 50 mas for the best available catalogs) limit the accuracy of astrometric observations. This in turn constrains our ability to predict the positions of small solar system bodies and to determine occultation circumstances, including occultation ground tracks. We discuss current catalog errors and their effects on predicted positions of small solar system bodies, including the 6000 bright asteroids monitored by the Flagstaff Astrometric Scanning Transit Telescope. We then discuss an experiment that bootstraps astrometric measurements from a long focal length telescope with those from a telescope of short focal length (hence wide field of view) in order to mitigate the effects of catalog errors and improve predicted small body positions and occultation paths.
We acknowledge funding from NASA grant NNH08AI17I in support of this project.
Harris Hugh C.
Murison Marc Allen
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