• Disentangle the spatial and temporal variability of the slow wind: comparison of the variability of the slow wind on a number of orbits, with varying relative spacecraft-Sun longitudinal speeds at the same distance. [multiple orbits, radial dependence] [Compare to other spacecraft – radial alignments.]

This objective is part of the general characterisation of the solar wind and can be addressed by the in situ instruments (with the SOOP I_DEFAULT). No specific operational planning is needed. However, it will benefit from joint observations with PSP and L1, especially during radial alignments.

(To be moved to an overarching section (to be created) of characterisation of the solar wind together with other general in situ objectives).