Few missions have collected solar wind measurements in the outer heliosphere. All of the missions except Pioneer 10 moved into the incoming interstellar wind direction. NH is moving along the same longitude as Voyager 2 but remaining in the ecliptic headed toward the ENA ribbon. This plot shows the trajectories of outer heliospheric missions in Heliocentric Aries Ecliptic coordinates when those missions measured the solar wind plasma. The X–Y (left) and Z–Y (right) planes are shown. The direction of the interstellar wind is shown in pink. In green the TS crossing of Voyager 2 is identified, and the color of the Voyager 2 trajectory is changed from black to gray at the TS. We note that only the flow estimates from LECP are available beyond 10 au for Voyager 1.