PSDM Kirchhoff migrates pre-stack Common Image Gathers in depth with a Kirchhoff migration algorithm. Outputs are PSDM migrated gathers and/or stacked volumes. Travel time tables are computed by 3D ray-tracing through the OpendTect supplied velocity model. PSDM Kirchhoff comes with a job-deck builder and a subset of the Ethos processing system, which is Geokinetics™ proprietary seismic processing system.