Cross-section of the ion density around Cassini, in the yz-plane at x=0, for the time 2010-03-03 10:29. The Sun is in the -z direction, the plasma flow of 27 km/s is in the -y direction, and the spacecraft is moving with vs/c,x = 0 km/s, vs/c,y = 13.3km/s, and vs/c,z = 8.7 km/s. The depletion of ions due to the presence of the spacecraft extends more than 3 m away from the spacecraft in this instance.
Taken from Holmberg, M. K. G., Cipriani, F., Nilsson, T., Hess, S., Huybrighs, H. L. F., Hadid, L. Z., et al. (2021). Cassini-plasma interaction simulations revealing the Cassini ion wake characteristics: Implications for in-situ data analyses and ion temperature estimates. Journal of Geophysical Research: Space Physics, 126, e2020JA029026. https://doi.org/10.1029/2020JA029026