Light curves, HRs, and polarisation properties of GX 340+0 during the second IXPE observation. (a): IXPE light curve binned in 600 s intervals overlapped with the EP-WXT light curve (dodger blue points). The highlighted coloured intervals correspond to the NICER simultaneous observations reported in Table 1 and Fig. 3. (b): IXPE HR binned in 600 s obtained as the ratio of the IXPE counting rates in the 4–8 and 2–4 keV energy bands. (c) and (d): Time-resolved PD and PA in equal time bins of about 9.5 h. The errors are reported at 68% CL, while the upper limits are at 90% CL.