Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.5918j&link_type=abstract
American Astronomical Society, DPS meeting #38, #59.18; Bulletin of the American Astronomical Society, Vol. 38, p.596
Astronomy and Astrophysics
Astronomy
Scientific paper
The Sub-Kilometer Asteroid Diameter Survey (SKADS) (see Davis et al. 2006, this conference) covered 8.6 square degrees of sky and detected 1277 main belt asteroids to a limiting magnitude (at which the efficiency is 50%) of roughly R=23. By planting synthetic objects directly into the images we have determined the detection efficiency of moving objects as a function of their rate and direction of motion and their apparent magnitude on each of the six survey nights. The surveying pattern was designed to provide recovery of the asteroids over intervals >6; days and therefore allows a good orbit, distance and absolute magnitude determination for each of the objects. We have performed a high-resolution, high-accuracy simulation of the multi-night surveying procedure to compute the observational selection effects as a function of semi-major axis, eccentricity, inclination and absolute magnitude. We will present the results of this simulation and provide the observationally corrected distributions of main belt objects as a function of these orbital parameters and absolute magnitude.
Davis Damek
Gladman Brett
Jedicke Robert
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