Fig. 9

The latitude dependence of the averaged perturbed magnetic field amplitude δB in the radial distance range of 4.5–5.5 R _S for the noon sector for the data from 2005, 2006, 2007 and 2009. Each point represents the averaged δB within a small region of Δθ = 0.1° and ΔR = 1 R _s when Cassini passed through. It is noted that the latitude distribution of δB on July 26, 2009, peaked at ~10° which is different from the other data that show the δB peaks are at +2° and −2°