Authors: Bishwas L. Shrestha (Princeton University), Eric J. Zirnstein (Princeton University), David J. McComas (Princeton University)

The distant interplanetary shocks observed by the Solar Wind Around Pluto (SWAP) instrument onboard New Horizons show a large-scale change in the pickup ion density and temperature across the shocks. In contrast, large-scale compression of the core solar wind (SW) was not observed across the shocks, and the SW density exhibited erratic, small-scale structure and variations throughout the shock transitions. The erratic behavior of core SW across the shocks in the outer heliosphere is also observed by Voyager 2 where the SW density and magnetic field increase are not always coincident with the speed jump. We present a statistical analysis of distant interplanetary shocks observed by Voyager 2 in the outer heliosphere, covering a heliocentric distance range of 35-74 au. The investigation of shock geometry with hourly averaged data shows that most shocks are quasi-perpendicular, and they usually do not show MHD-like compression in core SW density corresponding to the speed jump, consistent with SWAP observations.