Synoptic maps at 4 R_⊙ of pB (top panel), H I Lyα intensity (middle panel), and derived solar wind speed (bottom panel) from Metis observations from January 14 to 17, 2021. The solar wind speed was computed with the following coronal model assumptions: T_e is the radial profile from Gibson et al. (1999), T_k = 1.0 MK, K_i = 1, and A_He = 10%. The polar angle is measured counterclockwise from the north pole, so that PA = 90° and 270° indicate the equatorial regions.