are used for demonstration. Those in the Landau frame is obtained using the relations (\[kappaLE\])-(\[chieLE\]).

The initial conditions are parametrically constructed as $$\begin{aligned}
e(\tau_\mathrm{th},\eta_s) &=& a_1 \exp(-a_2 \eta_s^2 - a_3 \eta_s^4), \\
n_B(\tau_\mathrm{th},\eta_s) &=& n_B^+(\eta_s) + n_B^-(\eta_s),\end{aligned}$$ where $$\begin{aligned}
&&n_B^\pm(\eta_s) = \nonumber \\
&&\begin{cases}
b_1 \exp[-b_2 (\eta_s \mp \eta_0)^2 - b_3 (\eta_s \mp \eta_0)^4] & \mathrm{for} \ \pm \eta_s > \eta_0, \\
b_1 \exp[-\tilde{b}_2 (\eta_s \mp \eta_0)^2 - \tilde{b}_3 (\eta_s \mp \eta_0)^4] & \mathrm{for} \ \pm \eta_s \leq \eta_0,
\end{cases}\nonumber \\\end{aligned}$$ at $\tau_\mathrm{th} = 3$ fm/$s$. The parameters are tuned to roughly reproduce the SPS data for 17.3 GeV Pb+Pb collisions [@Appelshauser:1998yb] without dissipative corrections. Here $a_1= 7.19$ (GeV/fm$^{3}$), $a_2 = 0.8$, and $a_3 = 0.05$ for the energy density and $b_1 = 0.45$ (1/fm$^{3}$), $b_2 = 0.4$, $b_3 = 4.0$, $\tilde{b}_2 = 0.55$, $\tilde{b}_3 = 2.3$, and $\eta_0 = 0.69$ for the net baryon density. It should be noted again that they are for demonstration and not for full quantitative analyses of the data because even though the results exhibit fair agreement with the data, the transverse expansion and the hadronic transport are not taken into account here. The prolonged space-time evolution may partially mimic the transport effects. The 