Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21544812h&link_type=abstract
American Astronomical Society, AAS Meeting #215, #448.12; Bulletin of the American Astronomical Society, Vol. 42, p.456
Astronomy and Astrophysics
Astronomy
Scientific paper
The Flagstaff Astrometric Scanning Transit Telescope (the Ron Stone Telescope, or FASTT) typically acquires five observations each year of the brightest 5700 asteroids. Accurate astrometry is the primary purpose of the data, and it is being used to improve asteroid ephemerides. Astrometric accuracy of 50 mas is achieved for a single observation at V<12, increasing to 120 mas at V=16. As a bi-product, R-band magnitudes are measured with accuracies of 0.05-0.10. These are being used to identify variable asteroids and to estimate the amplitude of variability each year and how much the amplitude changes from year to year. This paper will discuss the available data and give examples.
This work is supported by the NASA PAST and DSN Programs.
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