\begin{table}%t1
\caption{\label{t:fitpars}Model parameters for the flare of 2006 July~17.}
%\centerline
 {\begin{tabular}{l l l l}
\hline\hline\noalign{\smallskip}
Srl. No. & Parameter	& Value & Unit                  \\
\hline\noalign{\smallskip}
1  & $M_{\rm BH}^*$  & 4	& $10^6~M_{\odot}$	\\
2  & Distance$^*$    & 8.4	& kpc \\
3  & Inclination$^*$ & 90	& degrees \\
4  & $r_0$           & 7	& $R_{\rm g}$ \\
5  & $h_0$           & 9	& $R_{\rm g}$ \\
6  & $B_0$           & 147	& Gauss \\
7  & $n_0$           & 7	& $10^4$~cm$^{\rm -3}$	\\
8  & $T_{\rm e}$           & 7	& $10^{10}$~K \\
9  & $t_0$           & 5.90	& h~UT \\
10 & $t_{\rm d}$     & 1800	& s \\
11 & $f_{\rm n}$         & 0.60	& \\
12 & $f_{\rm o}$         & 0.12	& \\
\hline
\end{tabular}}
\medskip
The mass ($M_{\rm
BH}$) and distance were taken from their latest estimates \citep[see
e.g.,][]{GillessenEisenhauerTrippe2009,ReidMentenZheng2009}.  Inclination
of the jet axis to the line of sight was fixed to 90~degrees.  The base
of the jet is parametrized by radius of the nozzle ($r_0$), location of
the sonic point~($h_0$), magnetic field strength~($B_0$), number density
($n_0$), and temperature~($T_{\rm e}$) of the thermal leptons.  The flare
is characterized by its start time ($t_0$), duration ($t_{\rm d}$), density
enhancement fraction ($f_{\rm n}$), and expansion speed of the overdense region ($f_{\rm o}$, as a fraction of the sound speed). Parameters marked with an asterisk ($^*$) were not varied during fitting.
\end{table}