When I arrive, the sun has just begun to dip below the horizon, so I drop my bags at my cabin and race toward an apparent mirage of red and orange peaks, aglow in the late afternoon light.

Sunset is when the very last bit of the sun appears to dip below the horizon.

Along horizon LCS and differences in directions of LCSs resulted from faults are used to suppress the undesired LCS and random noise through local dip scanning and polynomial filtering.