Sequence of TRACE 1700 Å images overlaid by cotemporal RHESSI X-ray contours. The yellow contours correspond to the 10–15 keV range, while the light green contours correspond to the 50–100 keV range. The integration time for each RHESSI image is 1 min. The contour levels are 40%, 70%, and 95% of the peak flux in each image. We overlaid the same isocountors of the MDI magnetogram at 01:35 UT, shown in Fig. 2e, to panel a) in continuous magenta (cyan) line for positive (negative) field. The FOV is the same as that shown in Fig. 2e and has been kept as such even when TRACE FOV size changed (see the black band to the west of panels d)–f) and explanations in the text). The white rectangle in panel a) indicates the FOV shown in Figs. 10c, 11a, and 12a.