\begin{table}%t5
\caption{Wavelet-denoised spectral lags of weak GRBs. The lags derived
from raw data are shown for comparison where available. Spectral lags
measured between Channels~2 and~3 combined (50$-$300~keV) and Channel~1 (25$-$50~keV), $\tau_{2+3,1}$, with the exception of the XRFs for which the lag is measured between 15$-$25~keV
and 25$-$50~keV (Channel~1), $\tau_{1,15-25}$.}\label{table:wavelet}
\par
%\centering
\small
\begin{tabular}{@{}c c c @{}}
\hline\hline
GRB & $\tau_{2+3,1}$ (Raw data) (s)  & $\tau_{2+3,1}$ (Denoised data) (s) \\
\hline
& & \\[-8pt]
GRB~030529 & --- & $0.40^{\rm +0.20}_{-0.25}$ \\ 
GRB~040223 & $1.70^{\rm +0.30}_{-0.25}$ & $1.80^{\rm +0.35}_{-0.25}$ \\
GRB~040403 & $1.05^{\rm +0.55}_{-0.30}$ & $0.95^{\rm +0.25}_{-0.15}$ \\
GRB~040624 & $3.10^{\rm +0.90}_{-0.30}$ & $2.75\pm0.20$ \\
GRB~040730 & $3.35^{\rm +0.80}_{-0.55}$ & $3.05^{\rm +0.40}_{-0.45}$ \\
GRB~040827 & $3.65\pm0.30$ & $4.85^{\rm +0.15}_{-0.30}$ \\
XRF~040903 & --- & $\tau_{1,15-25}=0.10^{\rm +0.25}_{-0.15}$ \\
XRF~050522 & $\tau_{1,15-25}=1.15^{\rm +0.25}_{-0.45}$ & $\tau_{1,15-25}=0.70^{\rm +0.15}_{-0.25}$ \\
GRB~050626 & $3.25^{\rm +1.25}_{-0.65}$ & $3.25^{\rm +0.35}_{-0.45}$ \\
GRB~060130 & $3.65^{\rm +1.00}_{-0.75}$ & $3.45^{\rm +0.35}_{-0.45}$ \\
GRB~070309 & --- & $1.70^{\rm +0.35}_{-0.30}$\\
GRB~070615 & $0.40^{\rm +0.15}_{-0.25}$ & $0.40^{\rm +0.15}_{-0.20}$ \\
\hline
\end{tabular}
\end{table}