Analysis of the shock crossing on 29 January 2012 observed by STEREO-A. From top to bottom, panel a: Proton and electron intensity-time profiles as measured by HET, magnetic field vector magnitude, and components as measured by IMPACT/MAG; STEREO/WAVES dynamic spectrum; and background-corrected data as obtained with the fixed time lag parameter (N = 180) and increasing span parameter M. Panel b: Zoom in around time of shock number 125 passage with electron-normalized data. Panel c: Zoom in around time of shock number 125 passage with both electron- and proton-normalized data. The black vertical dashed line indicates the time of the shock passage over the spacecraft, and the orange dashed line marks the time of the peak intensity, I_peak, in the electron energy channel, as it had the strongest response in terms of the normalized data. Each shaded area in panel b shows the running mean plus two SD level of the corresponding running background window for the electron energy channel, which had the strongest response in terms of the normalized data.