Local and global reconnection rates collated with high-energy electron and proton emissions during the main rise phase and the main energy release phase of the 2003 October 28 flare. (a) Contour plot of the local reconnection rate E_c(t) in the negative polarity domain, overplotted with the derived height-time evolution of the X-point (black points, right axis). (b) Time profiles of the global reconnection rates $|\dot{\phi }|$, separately for the two polarities. (c) Electron bremsstrahlung at intermediate energies observed by Konus-Wind (black) and INTEGRAL/SPI (red); from Kiener et al. (2006). (d) Prompt γ-ray lines from INTEGRAL data (Kiener et al. 2006). (e) and (f) Electron high-energy bremsstrahlung and π-decay emission observed by CORONAS/SONG; reproduced under Springer Nature License Number # 5605391357254 (see also Fig. 3). The dark-cyan thick line indicates the onset of the bremsstrahlung emissions with energies > 1 MeV at 11:01:49 UT. The magenta thick line indicates the onset of the γ-ray lines at 11:02:15 UT. The black dashed line indicates the onset of the main energy release phase at T₂ = 11:03:40 UT.