Outflow speed and electron density vs. distance for the ten limb transits; the dotted and dashed curves are typical density profiles for a CH and a streamer, respectively (see Guhathakurta et al. 1999; Gibson et al. 1999). The solid blue triangles and the solid red squares are the intermediate- and low-latitude outflow speeds, respectively. The five- and ten-point stars represent the electron density values for the intermediate- and low-latitude outflows, respectively. The error bars in the electron density are not shown as they are barely distinguishable in a logarithmic plot; see text for a discussion about the error estimate for v and n_e. Analogously to Fig. 2, open triangles and squares refer to the outflow speeds in secondary intermediate- and low-latitude channels; the relative electron densities are given as open ten- and five-point stars.