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A detailed analysis of the astrometry of PanSTARRS images near the North Pole shows that a relatively small number of skycells suffered from poor cross-registration in the original processing.  Cross-registration issues can result in poor stacking of images, faulty measurements (magnitudes too faint, source extent and shape inaccurate, cross-filter misregistration), and generally poor depth and quality for mean and stack objects.  We have reviewed and quantified the cross-registration for all skycells North of +70 in the three deeper bands, g, r, and i, and identified questionable skycells via the internal positional dispersion of mean objects with at least five detections (in a given band).  The plots velow below show the distribution of skycells with at least 5%, 10%, or 20% of mean objects with an internal scatter exceeding 1.5 pixels, shown in orange, red, and purple, respectively. 

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