High-accuracy asteroid astrometry from table mountain observatory

We have installed a large-format CCD camera on the 0.6-meter telescope at JPL's Table Mountain Observatory and used it to obtain high-accuracy astrometric observations of asteroids and other solar system targets of interest. The detector contains 4096x 4096 15-mu m pixels and produces a field of view 21'.9 square at a resolution of 0 ".321/pixel. The field is wide enough to obtain sufficient reference stars from the ACT Catalog, and the oversampled images can produce centroids to a precision of 10-30 milliarcseconds. We describe the calibration and reduction procedures, including routine use of the overlapping field technique, that are necessary in order to obtain an accurate mapping of distortions in the focal plane. Our observations have enabled a successful flyby of 253 Mathilde, predicted ground tracks for several asteroid occultations, and will support onboard autonomous navigation for the Deep Space One mission.