EPD/HET proton data after the Solar Orbiter launch (colored stars). The top dotted line represents the adopted interstellar proton energy spectrum gathered from Burger et al. (2000). The triple-dot-dashed line, the double-dot-dashed line, the dot-dashed line, the dashed line, and the continuous line correspond to the proton energy spectra estimated in the force-field approximation of solar modulation for the indicated periods.