Fig. 1.
Normalized separation between two decimation solutions as a function of the minimum semi-major axis of the error ellipse in the decimation solutions for VCS (blue asterisks) and other (brown triangles) sources. The horizontal line indicates the upper limit of X0 = 3.97 imposed on the individual normalized separation, while the vertical line shows the upper limit of 1 mas for the individual semi-major axis of the error ellipse, both for removing the outliers.
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