Time distribution of the number of photons observed by BATSE in Channels 1 and 3 for GRB 970508, compared with the following fitting functions: (top left) Gaussian; (top right) Lorentzian; (bottom left) "tail" function; and (bottom right) "pulse" function. We list below each panel the positions ﹩t_{p}﹩ and widths ﹩\sigma _{p}﹩ (with statistical errors) found for each peak in each fit. We recall that the BATSE data are binned in periods of 1.024 s.