Panel a: full-disk GOES-10 3 s X-ray fluxes. The labels A, B, C, M, and X on the right y-axis indicate flare classes in the 1–8 Å channel. The vertical lines mark the start times of six CDS rasters; two solid vertical lines indicate the starts of the rasters when the excess line broadening is observed. Panel b: Wind WAVES 1 min averaged radio spectra. Panel c: full-disk Wind KONUS 3 s averaged X-ray counts⁻¹ in a 9-min period marked by the shaded bar in panel a. The 78–312 keV fluxes are multiplied by a factor of 5. Panel d: Phoenix 100 ms radio spectra.