This field is not solving. We're trying to figure out why only one quad (shown in red) is found by solvexy. Quads shown in gray are near the field, but not all the stars in the quad were in the field. Quads in other colors could potentially be found.

• Stars in the field (image) are green squares
• Stars in the catalog are red circles, scaled by how many quads they are apart of
• Quads that are gray don't have all their constituent stars in the field (hence they are not as visible)
• Quads that are colored have all stars visible in the field; theoretically these could be found by solvexy
• Quads that are bright red with a thick red border were found by solvexy (reported via the solvexy debugging options)

http://trac.astrometry.net/attachment/wiki/PostmortemAnalysis/sdss_single_field.0.png?format=raw