SDC density measurements above four cutoff sizes: 0.63, 0.68, 0.82, and 1.50 μm. The overall shape and upward trend, within error bars, is consistent between 0.63, 0.68, and 0.82 μm. Above 1.50 μm, there are insufficient detections to make any confident claims about the density of the grains throughout the New Horizons flight path. The 0.63, 0.82, and 1.50 μm cutoffs are chosen based on the onboard threshold table for different flight conditions, while the 0.68 μm cutoff is selected to observe the flux without any potential effects from interstellar grains.