Oscillation parameters, phase (φ), projected displacement amplitude (ξ), period (P), and damping time (τ) plotted as a function of s along the loop. The triangles show the results obtained for the second loop strand observed in six of the time-distance images. The error bars show the errors given by the fitting technique. The horizontal dashed line in the bottom two plots indicate the mean value of P and τ for the first loop strand and the horizontal dotted lines indicate the standard deviation. The reference time is 12:16:33 UT.