Time series of Si IV spectroheliograms for QSEB – 1. The log of the normalized integrated line intensity for Si IV 1394 Å line shown by the green shaded region in Fig. 7h. Like in Fig 8, the vertical dashed lines mark the end of each of the rasters and the black vertical lines denote the start and end time of the QSEB. The black horizontal line denotes the location of the QSEB-1.