Absolute magnitude vs. the differential number of known trans-Neptunian objects. Objects are binned in 1 mag bins. The largest few objects have had their absolute magnitudes adjusted fainter as in Figure  8 to account for their higher albedos compared to the smaller objects. The dashed line shows the best fit to the largest objects. It is apparent that the Kuiper Belt is nearly complete to about an absolute magnitude of around 5–6 mag after which a turnover shows significant incompleteness.